Chase and Leo decide to enter a build-your-own-bot Robot Throwdown, when Davenport wants to join their team, they agree, but kick him off when he wrecks their robot. He then enters the competition himself, going head to head against Chase and Leo. Meanwhile, Bree accidentally exposes her bionics to Caitlin, who then leaves in a fluster. Caitlin confesses she has a crush on Adam and he becomes her boyfriend so that he can convince her she didn't see anything. When Caitlin and Adam are on their date Caitlin confesses she wears glasses so she didn't see anything. Adam, who doesn't like Caitlin gets mad, his anger activates his bionics and Bree tackles Caitlin to the ground both to protect her and to stop her from seeing Adam's heat vision. Later, Adam finally gets Caitlin off his back by showing her who her true crush is - Chase. However, her "true crush" doesn't really want to cooperate.

Guest stars: Adam Dingerman as Kevin Stone, Michaela Carrozzo as Caitlin, Mark Christopher Lawrence as Robot Throwdown Announcer and Sean McCallon as Hammer Time Fighter.

Leo borrows Donald's helicopter to take his crush, Janelle on a flight date. Meanwhile, Bree gets her own room, and Adam & Chase are excited to have the lab to themselves. But things get out of hand and Chase decides to divide the lab in half.

Guest stars: Angel Parker as Tasha Davenport and Madison Pettis as Janelle.

When Bree gets tired of always being pranked by her brothers, she asks Davenport to help her. Chase and Adam's pranks get out of hand when Tasha gets sprayed in the face with ketchup and mustard. Tasha and Bree later prank them back. Grandma Rose comes to visit and begins to interfere with Leo and Janelle's relationship.

Guest stars: Angel Parker as Tasha Davenport, Madison Pettis as Janelle and Telma Hopkins as Rose Dooley.

After using their bionics to save Leo from a falling air conditioning unit, a suspicious Principal Perry catches Adam, Bree and Chase on video using their bionics, but luckily hasn't viewed the hard drive yet. In order to stop her from showing Davenport and Tasha the film on Parent-Teacher night Leo uses Davenport's invisibility cloak to sneak into her office. But after Leo gets caught, the Lab Rats must think of a new plan.

Guest stars: Maile Flanagan as Principal Perry, Angel Parker as Tasha Davenport and Elizabeth Margaret Beatrice as Ms. Thistle.

Adam, Bree and Chase plan to gain good publicity by having camera men film them during a mission, but it turns to a disaster when they fight for screen time. After the mission, the President orders the team to stay away from the public in order to let him settle things down. However, it goes wrong when Leo and Principal Perry are holding back angry protesters, who want Adam, Bree, and Chase gone, and Leo accidentally uses his bionic arm. As the protesters become even more enraged, they try to storm the house, and Adam panics and uses his bionic super breath to blow everyone off the premises. However, Chase criticizes Adam's actions and Bree, Adam, and Chase start fighting. They eventually decide to break the team. Three weeks later, Adam, Bree and Chase refuse to talk to each other, but they are forced into action when Krane plans to use his Triton app on everyone in the world. A large battle ensues pitting the Lab Rats, Donald, Douglas, and Leo versus Krane and his bionic army. Soon, however, although the Lab Rats and the rest of the team manage to hold back many of the soldiers, they are running out of time to stop Krane and his Triton App. Douglas then reveals that Adam, Bree, and Chase can fuse their abilities to stop Krane, and they succeed. The soldiers are no longer controlled by Krane, who's been blasted far away. But their victory is cut short when they find out that Donald is in serious condition after the battle. Later they find out that after the surgery, Donald is still in a very delicate condition. Leo is made an official member of the Lab Rats and he also gets a upgrade on his bionic arm.

Guest stars: Maile Flanagan as Principal Perry, John Eric Bentley as Mr. President Craig, Siobhan Cook as Protester, Jeremy Kent Jackson as Douglas Davenport, Cole Ewing as S-3/Sebastian Krane, Graham Shiels as Victor Krane and Ashley Argota as S-1 Krane.

When Leo needs help asking a girl to the school dance, Adam and Chase step in to help, but the plan backfires when she falls for Adam instead. The boys decide to settle their differences on the dance floor and each show off their best moves. Meanwhile, Bree gets to know her crush, Ethan, but he gets to know that Bree is one weird girl.

Guest stars: Ginny Gardner as Danielle, Garrett Backstrom as Ethan and Angel Parker as Tasha Davenport.

Absent: Hal Sparks as Donald Davenport.

When suspicious events happen overnight on the Bionic Island, everyone is convinced a new threat has emerged. However, this threat is revealed to be Leo, when his bionics glitch because Douglas never gave Leo a capsule.

Guest stars: Maile Flanagan as Terry Perry, Grace Kaufman as Kerry Perry and Jeremy Kent Jackson as Douglas Davenport.

Absent: Hal Sparks as Donald Davenport.

Leo decides to enter the school talent show by performing a magic act. When Chase is not pictured on the yearbook, he uses his molecular kinesis in the talent show auditions to show everyone he's popular but takes Leo's spot. Eddy gives Leo a device to interrupt Chase's bionics during the show, and Chase gets booed, causing his commando app to activate. Leo calms him down, but induces Spike again by insulting Chase. Leo tries using the device to shut Spike down, but ends up causing Spike's aggression levels to soar. Principal Perry then takes Spike down, reverting him to Chase. Meanwhile, Adam and Owen try to use butter as art, much to Bree's chagrin. Bree melts the statue, upsetting Owen. She makes it up to him by making him a new statue out of popcorn.

Guest stars: Maile Flanagan as Principal Perry, Ben Stillwell as Owen, Will Forte as Eddy and Elizabeth Margaret Beatrice as Ms. Thistle.

Absent: Hal Sparks as Donald Davenport.

When Adam, Bree, and Chase are completing their training, Adam gets bored of training and wants to have fun. He creates a duplicate of himself with Mr. Davenport's cellular duplicator. But things get out of hand when the duplicate learns how to multiply himself. Meanwhile, Bree and Chase have to baby-sit Principal Perry's niece who acts nice but is actually blackmailing them.

Guest stars: Will Forte as Eddy, Maile Flanagan as Principal Perry and Grace Kaufman as Kerry Perry.

Absent: Hal Sparks as Donald Davenport.

When the Lab Rats are on a mission, it is revealed that a girl was secretly recording them behind a bush. The next day, the Lab Rats go to school and everyone is looking at a viral video called "The World's First Bionic Humans". They go back home to tell Mr. Davenport, but he says he already knows. Meanwhile, Chase is confused that he didn't notice the girl who filmed them behind the bush even though he thermal scanned the whole place. He then looks at a chip log and finds out that the girl was in the exact spot he scanned. Chase then goes to tell Mr. Davenport, but a swarm of government agents surrounds them. Leo and Douglas are still in the lab until Leo uses a trap door to escape along with Douglas as they go to school to stay safe. It is then revealed that the mission the Lab Rats were on was a setup. Victor Krane then shows up with the girl that filmed the Lab Rats, whose name is revealed to be S-1. It is also revealed that she is bionic. Victor Krane electrocutes Perry and Douglas while S-1 crushes Leo's arm. Later, Douglas and Perry help Leo to get his arm fixed. They then go to the hospital with Tasha only to realize that Leo is gone. While the Lab Rats are saying their goodbyes, Special Agent Graham tells them it's time to leave, but Adam refuses. Agent Graham orders his agents to take them down, but Adam uses his wave blast ability to knock them down. When they run to the hospital, Perry tells them Victor Krane is responsible for exposing their bionics. Meanwhile, Leo is in Victor Krane's and Douglas's old warehouse and Douglas tells him to take his bandage off and pretend to throw a ball. He then realizes that Douglas upgraded his right arm with bionics. Victor Krane then shows up and knocks down Douglas and Leo, who fails to attack S-1. The Lab Rats then show up with Mr. Davenport, as Victor Krane uses a powerful bionic ability that knocks out Leo, Adam, Bree, Chase and Donald. Victor Krane then paralyzes Donald with his choking ability. Bree fights S-1 while Adam and Chase fight Victor Krane, but he easily takes them down with his newly upgraded Triton App that he uses on S-1. Leo then uses his bionic arm to take down Victor Krane. As Agent Graham arrives, Douglas reveals that Victor Krane and S-1 are the bionic villains. Then, Agent Graham is saved by Bree as Victor Krane tries to attack him and he takes Victor Krane and S-1 into custody and locks them in a prison with a bionic signal interrupter, preventing them from using their bionics to get out. Later, the Lab Rats are at a press conference and reveal that they are bionic super humans. While watching it, Principal Perry makes new friends with the Lab Rats. In the end, Agent Graham tells Donald he's now in charge of the Lab Rats. Also, it is revealed that Krane has an army of bionic soldiers, which he will use to destroy Adam, Bree and Chase.

Guest stars: Ashley Argota as S-1 Krane, Maile Flanagan as Principal Perry, Angel Parker as Tasha Davenport, Jeremy Kent Jackson as Douglas Davenport, Ben Bodé as Special Agent Graham and Graham Shiels as Victor Krane.

Tasha's mom comes to visit and she must pretend that Adam, Bree and Chase are their staff. Meanwhile Davenport's prized invention, a super strength and laser empowered exoskeleton suit, malfunctions, after Chase reverses its controls, to get back at Leo for stealing his presenting job. However, it ends up unleashing destructive power on the household, making Leo's grandma even more suspicious of the family.

Guest stars: Angel Parker as Tasha Davenport and Telma Hopkins as Rose Dooley.

During a lunar eclipse, Perry arrives at the house to inform the gang that aliens are on the planet, much to Bree, Chase, and Davenport's chagrin, but Leo and Adam's shock. She insists that Chase's upset stomach is due to an alien growing inside him, and chases him. However, the notice green goop leaking out of Perry's ears and mouth, and Davenport then admits she's an alien. Perry chases the gang, while Leo records the whole thing and eventually tires herself out. Leo accidentally wakes her, and she runs off with him to the school. Adam's heat vision destroys the alien pods Perry laid, and Leo is free. The mothership beams Perry away, just as Davenport arrives. Thinking that they'll "miss" Perry, they are sadly mistaken when the mothership beams alien-less Perry, and decides that humans are horrible and if Perry is a human, they are going to Mars. It is then revealed the whole thing was Leo's entrant in a contest.

Guest star: Maile Flanagan as Principal Perry.

Leo tries to show off his bionic arm to Janelle. Meanwhile, Agent Graham promotes Adam, Bree and Chase as bionic celebrities. But when they realize they missed a mission because of him, the Lab Rats decide to get Davenport back as their leader by pretending to have glitches in their bionics to humiliate Graham in front of the President of the United States, when he comes to visit them. In the end, Donald is back as their leader after Agent Graham is fired by the President.

Note: Adam's pressurised lung capacity from "Brother Battle" is prematurely shown in this episode.

Guest stars: Jeremy Kent Jackson as Douglas Davenport, Ben Bode as Special Agent Graham, Madison Pettis as Janelle and John Eric Bentley as Mr. President Craig.

Adam brings a dog back to the island and Douglas reveals that it's his old dog, Otis, who became bionic by Douglas to save his life, when Otis was injured. Chase turns out to be allergic to dogs as he starts sneezing so Douglas says that Otis has to leave but he and Adam actually hide the dog. Meanwhile Leo gets a new smartphone app assistant named Shelly with whom he has fallen in love with. Bree finds out and tells Leo how unhealthy it is. When Leo leaves Bree tries to delete Shelley but accidentally changes the settings from Shelley to Liam and is soon seduced by him. Leo realizing how unhealthy his relationship with Shelly was thanks Bree for making him realize that, until he hears Liam talking and realizes that Bree changed Shelly into Liam. Leo gets mad and wants his phone back so they start to fight. Suddenly there is an explosion in the weapons storage area and we find Douglas injured. Adam, Chase and Otis go to the weapons storage area and help Douglas up and Chase finds a tripwire. Since the dog was useless trying to sniff out the culprit Chase goes to review the footage of the weapons room and shows Douglas and Adam that it was Otis who set the tripwire. Douglas and Adam don't believe him at first saying that Chase is jealous of Otis and made the footage up. After a while, Otis goes to Adam and activates his override app which makes Otis able to control Adam. Douglas and Chase tries to stop Adam from acting crazy because they don't know that Adam is being controlled by Otis. When Otis starts shooting heat rays from his eyes at Douglas and acting hostile, Chase scans Otis' bionic chip and tells Douglas that he has an override ability. Douglas says it must have been Victor Krane who reprogrammed Otis to destroy him after he betrayed him . After a few failed attempts to distract Otis so Douglas can extract the chip, Douglas remembers that Otis loves peanut butter. Chase then covers himself with peanut butter to distract Otis, it works and Douglas is able to extract the chip making Otis a normal dog. Adam sees Chase covered in peanut butter and starts licking him pretending he is still under the dog's control. When Chase and Douglas reviews that Otis' chip was removed, Adam admits that it was just him as he really likes peanut butter. Leo and Bree come out of a room still fighting, and they accidentally drop the phone. Otis pees on the phone, which short circuits it and causes Leo and Bree to stop fighting and walk away from the phone.

Guest stars: Jumpy the Dog as Otis and Jeremy Kent Jackson as Douglas Davenport.

Absent: Hal Sparks as Donald Davenport.

When Davenport shows Leo and the Lab Rats his one million dollar painting, they don't approve of it. While Davenport goes to work, Leo and the Rats put the painting in Davenports art vault, which has a bunch of other paintings. When Adam sneezes, it triggers his heat vision and it burns a hole into the painting. The kids then try to cover it up by painting a new one that looks exactly like the original. All does not go according to plan when the FBI shows up and accuse Davenport of forging art and almost discover the lab looking for more forged art.

Guest star: Malie Flanagan as Principal Perry.

Bree gets a part-time job at a tech-support store with Catilin, but gets out-shined by Chase while he is talking to the manager of Tech Town, Scott. Chase sees how she feels later and they agree to not treat each other badly like they do on a mission and just be nice. Meanwhile, while Tasha is away visiting Grandma Rose, Leo and Adam make a turbo zip-line instead of doing the chores that Tasha gave them and Donald joins in later as well. When Tasha finds out about the zip line, she makes the boys do the chores and she hangs out on the turbo zip-line instead much to Donald, Adam and Leo's dismay.

Guest stars: Michaela Carrozo as Catilin, Angel Parker as Tasha Davenport and Dustin Ingram as Scott.

Leo, Adam, Bree, and Chase are at school where Marcus asked them if he could stay at their house for the weekend because his dad is out of town and he doesn't want to stay with his not-dead grandma. They let him come in. Then it is revealed Chase and the others have secret abilities , but when they confront Davenport, they find out that he doesn't know the type of ability they will have or the time it will come. Marcus comes to their house, but unfortunately, they have to go to space because Davenport's satellite was about to get hit by a meteor shower and the breach got locked. They get there and fix the breach but Adam accidentally breaks his security rope. All goes fine except Marcus found out about the lab's security camera tablet. At the end of the episode Marcus is shown in a place where he notifies a mysterious man who is probably Davenport's enemy about the infiltration in Davenport's lab that he just did.

Guest stars: Mateus Ward as Marcus Davenport as Jeremy Kent Jackson as Shadowy Figure.

After Principal Perry tells everyone a ghost story, Adam, Chase and Leo decide to take advantage of Trent's fear of ghosts for a little revenge. However, they soon start to believe that the ghost is real. Meanwhile, Bree and Owen have different opinions on how to decorate the gym for the Homecoming dance. In the end, it turns out to that Perry was behind the whole thing.

Guest stars: Eddie Perino as Trent, Malie Flanagan as Principal Perry, Elizabeth Margaret Beatrice as Ms. Thistle and Ben Stillwell as Owen.

Absent: Hal Sparks as Donald Davenport.

Tasha takes the entire family on a nice 'tech free' beach weekend in the RV, but when Davenport discovers a solar flare headed in the Earth's direction, he secretly enlists the help of the Lab Rats. While Davenport distracts Tasha, the trio is forced to wait in the RV-turned portable lab for their rocket launch window. Cooped up inside during their first summer vacation, Leo and the gang sneak out for a quick jaunt on the boardwalk but when they return the RV is gone. A policeman tells them he had the RV towed, and the lab rats perform to get money so they can get the RV back but land in jail when they realize they don't have a license to perform.

Guest star: Angel Parker as Tasha Davenport and Judson Mills as Beach Sheriff.

Davenport lays in critical condition after a battle. In an attempt to save him, Leo risks his life to perform a dangerous bionic process. Meanwhile, after being deactivated from the Triton App, Krane’s former bionic soldiers have nowhere to go and follow Adam home.

Guest stars: Cole Ewing as S-3/Sebastian Krane, Angel Parker as Tasha Davenport, John Eric Bentley as Mr. President Craig and Nicole Pettis as Agent Reed.

Leo, Bree, Adam, and Chase go on strike due to Davenport's unfair treatment. When he needs them for a special presentation, he must admit that he is wrong, or risk his entire career. But instead he gets Leo to be his pilot for the presentation. But little did Leo know Davenport is using him to get the lab rats to cave. In the end Davenport's presentation is blown and Adam, Bree, and Chase forgive Leo for going with Davenport.

Guest stars: Angel Parker as Tasha Davenport and William Charlton as NASA Rep.

Leo wants to be a part of the team, but Davenport won't let him. When Davenport discovers a gas leak, he calls Adam, Bree and Chase, but they're stuck in detention with Principal Perry from missing school on their other missions. Leo goes instead, much to Davenport's dismay. Leo soon proves to be worthy when he saves the day. In the end Leo is officially a member of the team as someone who watches over the mission and gives ideas/advice. Meanwhile Davenport gives Eddy a body, which is broken on the mission.

Guest stars: Maile Flanagan as Principal Perry and Will Forte as Eddy.

Sebastian has secretly formed an evil rebellion to get revenge on the Lab Rats for destroying his father; Victor Krane. Meanwhile, Leo is trapped with the other bionic people who also want revenge on their "father", but Leo manages to convince Spin and Bob to help him, and in the end, Sebastian is defeated, his rebellion is brought down, and he and his comrades are taken to a facility.

Guest stars: Cole Ewing as S-3/Sebastian Krane, Marissa Cuevas as Lexi Krane, Joel Michael Kramer as Tank Krane, Max Charles as Spin Krane, Brandon Salgado-Telis as Bob Krane and Maile Flanagan as Terry Perry.

When Chase refuses to admit that Adam has good ideas, Adam decides to run against him for student of the semester. Meanwhile, Leo takes advantage of Bree's super speed and starts using her as his personal taxi.

Guest stars: Garrett Backstrom as Ethan, Elizabeth Margaret Beatrice as Ms. Thistle.

Absent: Hal Sparks as Donald Davenport.

Davenport makes a deal with Principal Perry to improve the school technology even though Chase and Leo tell him not to. In the end, his ego ruins everything when he makes a robotic version of principal Perry. Leo and Chase are mad at him, so they make the robot Perry unfocused while unknowingly restoring the robot to its original factory settings, "seek and destroy".

Guest stars: Maile Flanagan as Principal Perry/Robo Perry and Matthew J. Evans as Alaster.

Not always observed; see Daylight saving time in Pakistan.

When Leo wants to impress Janelle by beating school bully Trent in basketball, Chase lends him Mr.Davenport's anti-gravity boots. But when Trent steals the shoes, Chase gets a gadget that makes the shoes dance with Trent in them. Trent takes the shoes off, and in the second round, Leo scores a goal by himself. Meanwhile, Bree and Adam compete for a spot on the cheer leading squad. Adam wins, but when Stephanie makes fun of Bree, Adam quits, and him and Bree make their own cheer and shame Stephanie and the cheerleaders out of the court.

Guest stars: Madison Pettis as Janelle, Eddie Perino as Trent and Oana Gregory as Stephanie.

Absent: Hal Sparks as Donald Davenport.

Sir Syed Ahmad Khan whose vision formed the basis of Pakistan

While going on a mission to receive samples to bust criminals, Bree is exposed to some of the chemicals she is collecting when she isn't paying attention. Davenport, Adam, and Chase try to figure out what's wrong with her and how to undo it. Leo tries to make sure Bree doesn't reveal her bionics when she sneaks out to see her crush's art. At the art show, the side effects of the chemical Bree was exposed to manifest.

Guest stars: Ben Stillwell as Owen and Sean Whalen as Guard.

When Tasha and Davenport go on a vacation, it is up to Leo to make sure that nothing happens to his step-dad's prized possessions. Leo and the Lab Rats all promise to behave, but the second they're gone, Adam, Bree, and Chase start to fool around in the lab. At night, Leo turns on the LEMP, a "glitch machine", thinking it is a nightlight. In the morning, Leo wakes up to find that Adam was talking backwards and Chase could only see pixels. They tell Leo that Bree began running in the night and they didn't know where she went. Chase uses the computer to track Bree. They fix their glitches, Bree runs home by using a map, and Chase finds out he tracked one of Davenport's drones, forcing Eddy to steer the plane back. In the end, Davenport grounds Leo and the Rats.

Guest stars: Angel Parker as Tasha Davenport and Will Forte as Eddy.

Chase feels that it is unfair to be picked on by Adam every time and tells Mr Davenport. Douglas overhears and unlocks a new ability for Chase, upsetting the balance in the house. Douglas tries to fix things by giving Adam a new ability too, but Adam and Chase ends up fighting with one and other. Meanwhile, Bree tells Leo about a contest at Tech Town as they are about to hit their one millionth customer and Leo competes to ride on the first anti-gravity roller coaster and meet the owner of Tech Town. Principal Perry tries to compete to crush Leo's dream. And in the end one of those two win, while that disaster falls upon the house where Chase and Adam have a death-battle and in the end they forgiev each other and find out that Douglas gave Bree the ability to go invisible, scaring everyone in the lab.

Guest stars: Jeremy Kent Jackson as Douglas Davenport, Dustin Ingram as Scott and Maile Flanagan as Principal Perry.

On the Lab Rats' first day of school, all goes awry when Chase is confronted by a football player and his "Commando App" is triggered, transforming him into Spike, a loud-mouthed, insulting bully with an enormous temper. When Spike stands up to Principal Perry, the school principal, she puts the Lab Rats up against the football team to battle it out for the coveted cafeteria table. While the Lab Rats' bionics and Spike's aggression get them close to winning, Spike reverts to Chase at the last minute. While Chase tries to compute the perfect winning pass, he becomes confused by too many targets, causing them to lose. Meanwhile, Donald tries to work, but is constantly interrupted by Eddy.

Guest stars: Maile Flanagan as Principal Perry, Eddie Perino as Trent, Will Forte as Eddy and Lori Alan as Edie.

Leo invents his first high-end technological creation, a pair of attack orbs meant to protect the family, but when they can’t differentiate friend versus foe, they create more damage than good. Meanwhile, Chase steals Donald’s Eddy technology to make a "Cheddy" app to win a Tech Town employee contest and beat Scott, but things go wrong when the technology doesn't work as expected. Elsewhere, Leo and Tasha go to see Janelle's play which Adam is starring in, but when Trent steals Leo's ticket, Leo and Trent ruin her play, much to Janelle and Adam's dismay.

Guest stars: Will Forte as Eddy/Cheddy, Dustin Ingram as Scott, Eddie Perino as Trent, Madison Pettis as Janelle and Angel Parker as Tasha Davenport.

Chase loses the phone with a bowling video of him and Adam doing bionic bowling stunts at Tech Town while working. Leo and Bree try and get Principal Perry to spend her money when she retires after Donald gives her money and Trent becomes the principal and makes Leo's life miserable. It works in the end, but Perry is broke and Scott fires Caitlin after she destroys a E-phone 7, while giving them to the customers, the one that had Adam and Chase's bowling stunts on it and as revenge, Leo makes Trent wear a different uniform, but to Bree and Leo's shock, he loves it much to their dismay.

Guest stars: Dustin Ingram as Scott, Michaela Carrozzo as Catilin, Maile Flanagan as Principal Perry and Eddie Perino as Trent.

Davenport has grown tired of his obnoxious ultra rich neighbor, Pierce, and decides to end their feud with a stock car race. But he quickly finds out that he'll need the help of the Lab Rats and Leo when his neighbor enlists the help of Joey Logano to win the race. Meanwhile, Leo wants the corner locker at school, only to find out it has been taken by Pierce's son, Clayton Harrington. Joey later leaves because Pierce and Clayton sabotage Davenport's car and says he doesn't work for cheaters. Davenport then fires his pit crew, who have been paid by Pierce to sabotage his car, and Adam, Bree, Chase and Leo become his new pit crew. Joey helps Davenport win as well. Davenport has a plan to stay behind and then slingshot past Pierce's car. In the end, Davenport wins, Pierce and Clayton move and Leo gets the corner locker.

Guest stars: Malie Flanagan as Principal Perry, JT Neal as Clayton Harrington and Craig Zimmerman as Pierce Harrington.

Special guest star: Joey Logano as himself.

Leo teams up with Adam in the school fitness challenge 'Death Spiral Smackdown,' hoping that Adam's bionic powers will be his secret weapon; the plan backfires when they end up going head-to-head in the finals. Meanwhile, Bree and Chase use their bionic abilities against one another when Chase tries to sabotage Bree when she is with her friends by making her speak French, Swedish and many other languages and making her slap her face.

Guest stars: Maile Flanagan as Principal Perry, Tucker Albrizzi as Gordo and Michaela Carrozzo as Caitlin.

Absent: Hal Sparks as Donald Davenport.

Leo is trapped by Marcus at school, but escapes and follows Marcus to his house. He gets photographic evidence that not only proves that Marcus is evil but also he wants Adam, Bree and Chase but is unfortunately captured by Marcus with a robot. Leo escapes by outthinking Marcus with a move Chase used to beat Adam at arm wrestling. When Leo tries to bust Marcus, his phone is destroyed by the broken teleporter. Marcus' house appears normal except for a camera that Davenport suspiciously notices but doesn't mention. Marcus' dad reveals himself and says that Marcus has failed him and he will take care of Adam, Bree, Chase, and Davenport. Meanwhile, the Lab Rats try out a teleporter, but accidentally teleport Tasha to Fresno, and must fix the teleporter to bring her back.

Guest stars: Mateus Ward as Marcus Davenport, Angel Parker as Tasha Davenport, Will Forte as Eddy and Jeremy Kent Jackson as Douglas Davenport.

Adam, Bree and Chase accidentally leave Spin and Bob behind on the mainland and scramble to retrieve them before Davenport finds out. Meanwhile, Davenport tries on Chase's suit, and he and Leo scramble to get it off, before Chase gets home.

Guest stars: Max Charles as Spin Krane, Brandon Salgado-Telis as Bob Krane and Joe Sabatino as Criminal.

Adam, Bree, and Chase sneak out in Davenport’s new self-driving sports car. When Leo tries to stop them, his nemesis Marcus traps him inside the car and programs it to take him on a wild, high-speed ride bound for the bottom of the Atlantic Ocean. In the end Marcus reveals to Leo he is bionic like Adam, Bree and Chase, and that if Leo tells any one, Marcus will tell the world about the Rats' secret, thus ending with them going away to a facility and Mr. Davenport ending up in The Big House.

Guest stars: Will Forte as Eddy, Mateus Ward as Marcus Davenport, Jeremy Kent Jackson as Shadowy Figure and Angel Parker as Tasha Davenport.

When Adam, Bree and Chase forget to invite Leo to his own surprise birthday party, they must make it up to him, so they take Leo into the ultra-cool virtual mission simulator and show him what it's like to be bionic.

Guest stars: Angel Parker as Tasha Davenport, Will Forte as Eddy and Erin Unger as Glitter Head.

The Lab Rats are forced to expose their bionics to save Principal Perry's life. Meanwhile, Davenport is attacked by a mysterious hacker. The hacker later uses all of Davenport's credit cards and hacks his computer networks. When Davenport loses the house, The Lab Rats then run off to hide from the FBI with no telling where they are. It is later revealed that Douglas is the hacker and was released by a mysterious masked man. At the end of the episode, Douglas sets off explosives in the lab and Davenport and Leo escape but are stuck in the elevator with no way out.

Guest stars: Maile Flanagan as Principal Perry, Angel Parker as Tasha Davenport, Will Forte as Eddy, Ben Cornish as the FBI Agent, Jeff Douchette as Bank Rep, Jeremy Kent Jackson as Douglas Davenport and Graham Shiels as Victor Krane.

Since the lab is destroyed, Adam, Bree and Chase go without their capsules. This causes glitches in their bionics. In order to prevent this, Mr. Davenport pulls off a huge stunt in a fiberglass jet wing he invented. Things go wrong when the Jet Wing runs out of fuel. Meanwhile, knowing the Lab Rats' bionic secret, Principal Perry uses Adam and Bree as her bionic servants for the day.

Guest stars: Angel Parker as Tasha Davenport and Maile Flanagan as Principal Perry.

Muhammad Ali Jinnah served as Pakistan's first Governor-General and the leader of Pakistan Movement

Adam, Bree and Chase go on a mission to save Dr. Evans on Christmas Eve, due to a large volcanic eruption in the frozen tundra. After aiding Dr. Evans in stabilizing several of his machinery, an after shock causes his gamma-sphere to crack. Chase has to use his forcefield to contain the highly dangerous gamma rays. Meanwhile, Principal Perry stays in Davenport's mansion and makes Christmas miserable for Leo. In the end, she makes up for it by making a beautiful dinner for them to enjoy, although she makes Davenport pay for it.

Guest stars: Angel Parker as Tasha Davenport, Malie Flanagan as Principal Perry and Noah Wyle as Dr. Evans.

After Adam, Bree and Chase disobey Davenport's orders, he decides it's best they are sent to a top secret facility in the Arctic. To replace them, Davenport creates robot versions of them to hang out with Leo, but the Davenports switch places with the robots. However, Tasha decides that she doesn't want Leo to hang out with robots , and tells Donald to recycle the robots, not knowing they were the real kids. Once at the recycling plant, Adam, Bree and Chase use their bionics to avoid the various hazards, but must go back when Leo jumps in, hoping to rescue them, before Adam finds the "Off" button. When Davenport sees the kids risk their lives for each other, he decides to let Adam, Bree and Chase stay, as long as they can control their glitches.

Guest stars: Will Forte as Eddy, Gage Creamer as Little Adam Davenport, Calista Loter as Little Bree Davenport, Drew Cullen as Little Chase Davenport and Angel Parker as Tasha Davenport.

Chase gets a girl interested in him, but Adam gets jealous and tries to ruin their date by having Chase turn back into Spike. Meanwhile, Leo and Bree suspect that Principal Perry has murdered a cook from the cafeteria and Donald. They then find out it was about a hamburger truck and they misunderstood everything.

Guest stars: Maile Flanagan as Principal Perry and Ashlee Fuss as Sabrina.

Since Principal Perry knows that Adam, Bree and Chase are bionic, she wants to get in the action and go on a "Mission" with the lab rats. When they stage a fake mission. They take her down to the newly built lab, things don’t go as planned, and they have to save Mission Creek High from a speeding rocket. Meanwhile, Janelle goes on a date with Leo, but is beginning to see him as a jinx because she always gets hurt when he is around.

Guest stars: Will Forte as Eddy, Maile Flanagan as Principal Perry and Madison Pettis as Janelle.

Adam and Chase each lead their own student groups against each other in a series of simulated exercises that will evaluate both student and mentor performance. However, after Chase's group fails at defeating the exoskeleton and defusing a virtual bomb , Chase decides to find a way to cheat and win. He tries to use his override app to make his group do whatever he is thinking. However, it malfunctions and they mirror what Chase does. With no time to fix it, they third test starts. The test is a virtual maze that the students must do alone. But while watching the student's progress on the screen, Chase mimics the maze, claiming it's his "good luck dance." Chase's team wins, but Adam steps on Chase's foot to expose the override app. Chase is then punished by Davenport having Adam use the override app on Chase. However, when Adam uses it ti hurt Chase, Adam hurts himself in the process. Meanwhile, Leo wakes up to find the mentor quarters a mess. After cleaning in for six hours, he blames Adam and Chase. But when he finds the quarters a mess again, he looks at the security footage and realizes that Bree is making the mess. Leo catches Bree in the act, and Bree says that she just wanted to let loose because she had some freedom. The two start throwing junk at eachother and where they sleep. When Leo is about to bury Bree in Adam's workout clothes, she stops him and wishes there was a way the she could be messy and not have Leo clean up after. So, much to Donald's dismay, they use the exoskeleton as their cleaner.

No one guest stars or is absent in this episode.

As Donald attempts to repair Bree's damaged chip, the replacement chip keeps malfunctioning, much to Donald's frustration. Though Leo believes Douglas can help since he was the original creator, Donald refuses to even see his brother again. Realizing Donald won't change his mind, Leo finds Douglas anyway, who reluctantly agrees to help. While Donald is away, Douglas creates a new chip as close the original as possible, and though is seems to work, it also malfunctions by causing Bree to run uncontrollably. The three manage to keep her still, the Davenports' still can't find a solution. After several minutes, they finally find the error and collaborate for the first time in years, fixing Bree's chip and saving her life . Meanwhile, Adam and Chase try to find a way to replace Bree's speed. While Chase manages to power up Davenport's motorcycle to go 350-400 mph, it runs out of gas almost instantly. After Bree's chip is fixed, Donald still kicks out his brother. While watching Bree apologize for her mistake, Donald realizes everyone deserves a second chance. The next morning, Donald offers his brother a chance to move in with them temporarily, who accepts.

Guest stars: Marnie Crossen as Myrtle, Sandy Martin as Greta and Jeremy Kent Jackson as Douglas Davenport.

When Chase inadvertently causes Adam to shrink down to two inches, he takes advantage of the situation to get back at Adam for all the times he called him short. However, he begins to regret it when he loses Adam. Meanwhile, Bree gets control of the school for a day but finds it hard to handle when Principal Perry decides to act like a student. But later Bree calls Perry's mom and revealed that whenever Perry sees her mom she acts like a child.

Guest star: Maile Flanagan as Principal Perry and Peggy Miley as Perry's Mother.

Absent: Hal Sparks as Donald Davenport.

The episode starts when Adam, Bree, Chase and Leo are on a mission to save people from a wildfire. When the people start to chant "Adam, Bree and Chase," Leo gets jealous and wants to become known. Douglas gets put in charge to develop new technology for the academy but can only come up with things that can hurt the students. Douglas gets an idea for a 'Lie Chair' that can tell if people are lying. If a person does lie then they are spun in the chair at mach 3 speed. Bob then unintentionally annoys Douglas by suggesting ideas for things that have already been invented. Later, Adam, Bree, Chase and Leo get a mission alert. When they arrive at the site, they find a old lady who claims her cat ran up a tree, but it is actually a raccoon. Her cat is on the ground next to her. Then 5 more mission alerts come up. Back at the Academy, after 15 straight missions and none of which were actual emergencies, Adam, Bree and Chase find out that Leo had made 10,000 business cards and a commercial in Spanish and English for a bionic emergency rescue service. Getting mission alerts from all over the country, Chase decides not to go because at least half of the alerts are not emergencies. Leo feels he needs to fulfill his promises and save people so he goes on a mission alone. As Bob continues to drive Douglas crazy, he and Spin see all the mission alerts and start answering calls. Arriving at the mission site, Leo finds a helicopter about to fall over a side of a building. Using his super strength, he tries to pull the helicopter back down, but it is too heavy. Calling Bob for help, Leo gets put on a 20-minute hold. Adam starts to help Bob and Spin answer calls and picks up Leo's second call but hangs up. Chase finds out from Adam that Leo called in and rushes to the site of Leo's call. Arriving with Adam and Bree, Chase stabilizes the helicopter, while Bree helps passengers out. When she goes back to check if anyone else is in it, her suit gets stuck, and the helicopter starts to fall. Leo grabs hold of her just in time and realizes that it is not about the fame, but it is about saving lives. Douglas uses the technology from the lie chair to tell if the mission alerts are real or not.

Guest stars: Jeremy Kent Jackson as Douglas Davenport, Max Charles as Spin Krane and Brandon Salgado-Telis as Bob Krane.

Absent: Hal Sparks as Donald Davenport.

During movie time, one of Davenports inventions accidentally sucks Leo into a parallel universe, where the Lab Rats are powerless and Leo's the one with bionics and everything is backwards. Principal Perry is nice, Adam is a nerd, Chase is a jock, and Bree is popular. The Lab Rats don't know Leo. When he exposes his bionics to them, which freaks them out, they then tell the F.B.I., who come for Leo. He and Davenport have to get him back to his universe before Leo ends up in government lockdown.

Guest stars: Angel Parker as Tasha Davenport/Parallel Tasha Davenport, Maile Flanagan as Parallel Principal Perry and Tim Russ as Agent Gordon.

The Rats switch their bionic chips after Leo mentions it. Adam has Bree's speed; Bree has Chase's intelligence; and Chase has Adam's strength. Ignoring Davenport's warning, they go to school and Chase, not used to heat vision, accidentally traps Leo and Principal Perry inside the elevator during a drill as part of Emergency Preparedness Week at the school after Bree complains about the noise the fire alarm bell makes. Right before Chase traps them, Adam finds out that he has guacamole on his shirt and super speeds home to get tortilla chips for it. Chase is unable to do anything, so the Rats race home try to switch back their chips, but accidentally end up with Chase with Bree's speed, Bree with Adam's strength, and Adam with Chase's intelligence. Adam figures out that Bree can pull the elevator cables, lifting Leo and Principal Perry to safety. This works, but Davenport busts them, but is glad that they learn their lesson about chip switching.

Guest star: Maile Flanagan as Principal Perry.

Adam gets his driver's license. Davenport takes Adam to get a car, but Davenport has to leave early and Adam gets a monster truck instead of the intended car. Davenport is about to take back the truck, but he and Adam decide to keep it and take a joyride. Meanwhile Leo is bragging he was invited to a party, but when Tasha runs for PTA president and embarrasses him, he worries he will be uninvited, so Bree uses her voice manipulation powers to make Tasha seem like she is making fun of Principal Perry, and Perry then decides to run against Tasha. In the end Perry wins the vote when Adam and Davenport crash the Monster Truck into the school.

Guest stars: Angel Parker as Tasha Davenport and Malie Flanagan as Principal Perry.

Adam and Bree are always saying that super speed and super strength always make a good team, so Chase tries to prove to them and Davenport that super smarts can be good on its own. Davenport arranged for Adam, Bree, and Chase to go on a mission in Antarctica, but called it off because he thought that it was going to be too dangerous. Chase goes anyways, proving to Adam and Bree that he can complete a mission himself and ends up getting trapped by an avalanche. He is rescued by Douglas, who presents him with a tempting offer to work together. Then, Chase pretends to agree but freezes Douglas in the end. Meanwhile, Leo accidentally freezes Janelle and Tasha with Donald's freezing gun.

Guest stars: Angel Parker as Tasha Davenport, Madison Pettis as Janelle and Jeremy Kent Jackson as Douglas Davenport.

Bree is accepted for a semester abroad program in Australia, but when Davenport learns about it, he refuses to let her go, saying since she's bionic, she's part of a team. When Davenport again refuses to let her go to a concert with her friends in favor of bionic chip maintenance, she decides she's had enough and smashes her bionic chip, much to Adam, Chase, and Davenport's horror. At first, Bree relishes her new freedom, and even begins bragging to a disgruntled Leo. During a mission, Bree feels helpless as Adam and Chase are gone for hours, and Chase reveals that they barely made it out alive, and because Bree is no longer bionic the mission took twice as long. Bree realizes she was selfish and apologizes to her brothers, ready to become bionic again, but Davenport sadly tells her that since Douglas built the chips, he isn't sure if Bree will ever be bionic again. Meanwhile, Tasha is sick, so Leo decides to use his new pill invention on her to see if her diagnosis will reveal the problem, but when he took some of the software from Eddy, he didn't remove it, and Eddy is stuck in Tasha's body. Eddy spends the day dressing her horribly and getting her kicked out of every spot in town. Davenport finally uses his nasal vacuum on Eddy, and the pill comes out. However, Eddy reveals he did a news report as Tasha, and much to her shock, he made her look like a complete buffoon.

Guest stars: Will Forte as Eddy and Angel Parker as Tasha Davenport.

Davenport leaves Adam, Bree, and Chase in charge of the Bionic Academy while he celebrates his anniversary. Leo invites Janelle to the island, but gets distracted by his nemesis.

Guest stars: Max Charles as Spin Krane, Salgado-Telis as Bob Krane, Pettis as Janelle and Cole Ewing as S-3/Sebastian Krane.

After Davenport only seems to point out what they do wrong, the Lab Rats begin to get annoyed at Davenport. Meanwhile, Marcus disables Eddy and he and his dad, Donald's brother Douglas, capture Donald. Marcus and his dad show Donald trapped and try to lure them to their lair. Leo reveals that Marcus is also bionic with all their powers combined. They go to Marcus's secret house in their new mission suits. Marcus reveals that Leo was right about him all along and defeats Adam and Bree easily. Chase uses a new ability, levitation, to "beat" Marcus, who once again fools them. Douglas transports them into Donald's cage, and reveals that he is their father. Donald reveals that Douglas used to work with him, but got kicked out of the company for evil ideas. Douglas then built Marcus, an android who is dying fast. Douglas tries activating the Triton app, but Donald's block prevents him from doing so. Meanwhile, Leo arrives to rescue the gang with Eddy in tow in watch form after learning everything along the way with the Lab Rats via video. Marcus comes outside and electrocutes him, but luckily Leo survives and comes up with a new plan. Inside, Bree deactivates the cage's laser source, and Donald and Douglas fight to control the Triton app remote. Marcus takes on the Lab Rats, and defeats them. Just as Douglas grabs the remote, Leo arrives in the exoskeleton, making Douglas drop the remote. Donald then crushes it, while Leo fights Marcus, who easily knocks him down, and prepares to finally kill Leo. Adam gets angry and reveals a hidden ability, a bionic blast wave, which destroys the lair, as well as knocking out Bree, Chase, Leo, Donald, Douglas and Marcus. Douglas escapes from the room, but Marcus, furious, gets crushed by the rocks, and the Lab Rats quickly escape. Marcus' robotic hand rises from the rubble, but shuts down, confirming his death. Donald says he's proud of them, and Chase says that Donald is their real father. When Donald tries to set the alarm on the house, Leo remembers he left Eddy in watch form outside Marcus' house.

Note: This episode was advertised as a special one-hour event episode.

Guest stars: Will Forte as Eddy, Mateus Ward as Marcus Davenport and Jeremy Kent Jackson as Douglas Davenport.

At the beginning of the episode, Leo and Donald escape the elevator. Principal Perry lets them stay at the school temporarily in order to get her money from Donald quicker. The Lab Rats stow away on a cargo ship to hide from the FBI and must choose to either keep quiet, or help stop a submarine that will crash into the ship and risk being caught. The Lab Rats decide to stop the submarine with Chase activating his GPS, revealing the Lab Rats' location. Douglas ends up capturing them, disguised as Donald. Douglas reveals that his new bionic partner is a billionaire named Victor Krane, who wants to destroy the Lab Rats permanently. When Donald calls the Lab Rats and tells them that Perry kept their secret, they return home, only for them to get crazy as a result of the Triton app and attack the family. The Lab Rats and the family later see the demolition that happened to the lab, they all are upset about what happened to the Lab, it burnt down after Douglas set off the explosives from "No Going Back".

Guest stars: Angel Parker as Tasha Davenport, Maile Flanagan as Principal Perry, Jeremy Kent Jackson as Douglas Davenport and Graham Shiels as Victor Krane.

Future Leo travels back in time to tell Leo that Chase, Bree, and Adam won't make it to the future and that the only way to stop them is to not let them go to their ultra collider mission. Adam, Bree and Chase go anyway since the whole world is in their hands. After Leo goes after them and saves their life by pushing them aside when the dome collided, Adam digs up Leo ending up saving every one of them. Leo misses his date with Janelle, and Future Leo ends up with a dog instead of Janelle.

Guest stars: Tyler James Williams as Future Leo and Madison Pettis as Janelle.

To his dismay, Leo finds out that he will be a student at the Bionic Academy, not a mentor like Adam, Bree and Chase. Chase engages in a battle against a former nemesis and Adam mentors a younger student.

Guest stars: Cole Ewing as S-3/Sebastian Krane, Max Charles as Spin Krane, Brandon Salgado-Telis as Bob Krane and Paul Black as Bionic Bro.

Leo desperately wants to be Davenport's lab assistant, but he accidentally corrupts the smart-home system, turning Eddy into an evil demonic virus named Teddy. Meanwhile, Bree holds a sleepover with her friends, unaware that they only wanted to come because of the house she lives in, while Adam and Chase try to pull a prank on the girls.

Guest stars: Angel Parker as Tasha Davenport, Oana Gregory as Stephanie, Michaela Carrozzo as Caitlin and Will Forte as Eddy/Teddy.

Trent asks for help on his test from Chase and Leo, and they decide its a good chance to get back at him for picking on them. They program the Davenglasses with fake information, and Trent fails the test. Perry tells them that Trent would have graduated if he passed the test, and they convince her to let him take it again. They help him study for real this time, using Leo's pain as inspiration. In the end, they find out Trent is now their gym teacher. Meanwhile, Bree wants to look good in her yearbook photo so she goes to the hair salon. Adam accidentally burns off half of her hair, and they ask Donald to fix it. Adam puts too much hair growth cream on Bree. On school picture day, her bangs grow over her face when Perry takes a photo.

Guest stars: Malie Flanagan as Principal Perry and Eddie Perino as Trent.

Adam and Chase befriend new kid Marcus from school. They form a band but when Leo gets suspicious he joins the band only to get blamed for breaking Marcus's guitar. Meanwhile, Bree plans to bond with Mr. Davenport on Career Day, but gets upset when she finds out Davenport had been planning something with the boys. Leo brings along a tablet with Eddy's home system recording installed on it, showing that he did not break Marcus's guitar, but before he shows everyone Marcus confesses and finally tells everyone the truth. After a pretend breakdown, he then tells Leo to never tell on him again or else he's toast.

Guest stars: Mateus Ward as Marcus Davenport and Will Forte as Eddy.

When Adam, Bree and Chase discover that their new action figures are being outsold by another toy, The Nerble, they attempt to improve their toys by adding special features - bionic abilities. After adding them they decide that the toys are too dangerous for kids and put them in a box to be destroyed. Tasha is running a toy drive at the school and is collecting gifts. She finds the action figures and hands them out. When Adam, Bree and Chase find out, they rush to school and try to catch the action figures. After destroying the toy drive, they find a way to make it up to Tasha and the kids. Leo and Donald have a snow ball fight in the house and Grandma Rose shows up, just as Leo uses his bionic arm. Rose gets mad and calls Donald a bad father. Donald tries to makes it up to Rose by giving her an action figure, made from a Bree figure, but it promptly explodes.

Guest stars: Angel Parker as Tasha Davenport and Telma Hopkins as Rose Dooley.

Area controlled by Pakistan shown in dark green; claimed but uncontrolled territory shown in light green.

Chase pulls a prank on Adam, ending with Adam dislocating his arm, and Adam then gets worried because the world is so dangerous. He quits the team because he doesn't want to get hurt. Chase and Bree realize they can't do it alone, so Chase and Davenport come up with a plan to get Adam back on the team, but things go wrong and Chase gets hurt. Meanwhile, Bree discovers her secret ability, and gets grounded for using it to make fun of Principal Perry. Leo and Bree later get grounded at home.

Guest stars: Maile Flanagan as Principal Perry and Elizabeth Margaret Beatrice as Ms. Thistle.

The Lab Rats get their first mission to stop Davenport's hi-tech super fast train from speeding out of control. Leo sneaks along, but when the Lab Rats discover he accidentally discarded the braking system they were supposed to install, they must improvise a way to stop the train before it crashes into a nearby town. Meanwhile, Tasha is given her big break at the TV news station when her boss asks her to cover the runaway train. She misses to see the train and fails the report. After Leo stops the train, Tasha finds out and she grounds Leo for two weeks in his room without television, video games and leaving the house, but Leo shortens his grounding to one week without Tasha knowing.

Guest star: Angel Parker as Tasha Davenport.

When Leo and his mom, Tasha move into his step-dad, Donald Davenport's house, Leo discovers three bionic, super-human teens named Adam, Bree and Chase living in a secret underground lab in Donald's high-tech home. He takes the teens to school, where their lack of experience with the outside world causes chaos, prompting Davenport to ban them from ever leaving the lab. However, Leo, in appreciation for making him more popular by using their bionics, throws a party for Adam, Bree and Chase in Donald's house, only to get caught when he and Tasha walk in during the festivities.

Guest stars: Angel Parker as Tasha Davenport, Will Forte as Eddy, Cody Christian as Kavan.

View of Pakistan's capital Islamabad, the city is home to several of countries largest companies.
Pakistan would become the 18th largest economy in the world by 2050 with a GDP of US$ 3.33 trillion.

Donald shows a new motorcycle to Adam, Bree and Chase when they get a video message from Douglas, that Victor Krane has "lost it" and implanted himself with more bionic abilities; abilities even he doesn't know about. The gang instead believes this to be a trap, leading Davenport to activate a new security system that only he can bypass. While Leo is at Mission Creek High School, Douglas arrives and tries to appeal to Leo by reminding him that he knew about Douglas and Marcus before the rest of them. Douglas then shows Leo video footage of Krane implanting himself with even more bionics and asks him to call his brother to prove his honesty. Back at the lab, a transmission comes in and shows Leo and Tasha captured. While Donald thinks it's Douglas, Victor Krane reveals himself on-screen as the captor and demands that Adam, Bree and Chase arrive in 10 minutes. While the Lab Rats want to rescue them, Donald heads out alone with an extremely powerful thermal blaster. Donald arrives at Krane's lair, only for Krane to siphon the power from the blaster, rendering it useless and quickly beating Donald with super-strength and molecular kinesis. All during the fight, Leo and Tasha are trapped in an exothermic energy field to fry them. Afterwards Krane geo-leaps to the lab, allowing Donald to use the thermal blaster to suck in the heat to set Leo and Tasha free. As Chase works to de-activate the security system, Krane arrives and easily beats the three with his more advanced bionics. Before Krane can finish off the kids, Douglas arrives and blasts Krane with a laser blaster. Although he saves the kids, Krane quickly recovers and knocks him down with another force wave. As he once again prepares to attack, Chase repels his blast back at him with a force field, defeating him for real. Douglas plans to capture the unconscious Krane, Donald arrives, blaming the entire mess on his brother. Unfortunately, Victor geo-leaps out of the house and Donald demands that Douglas leave.

Guest stars: Jeremy Kent Jackson as Douglas Davenport, Graham Shiels as Victor Krane and Angel Parker as Tasha Davenport.

Leo uses a robotic fly to mess with Bree, but he goes to far when he uses it to cheat off Bree's test. When Bree scolds Leo for copying, Principal Perry gives her an F for talking during a test. But when Principal Perry finds and keeps Leo's robotic fly, they accidentally releases a swarm of them which all paralyze the students, but the only way Bree will help is if Leo confesses he cheated. In the end Leo confessed and Bree created a tornado with her speed to capture the flies in the container. Meanwhile Adam and Chase must take care of dolls for a class, but it ends up in a battle between them with them hurting each other's babies in various ways.

Guest star: Malie Flanagan as Principal Perry.

Absent: Hal Sparks as Donald Davenport.

Adam, Bree and Chase learn about chores and earn allowance for the first time. In hopes of raising more money, the Lab Rats decide to host a yard sale but they accidentally sell an antique jewelry box that Davenport was restoring for Tasha. Meanwhile, Leo and Davenport bond over the latest 'Pig Zombie' movie. When Tasha finds out about her son disobeying her rule and lying to her and Davenport, she grounds Leo and forbids him to watch television for a week, but Tasha later lets Leo watch the 'Pig Zombie' movie marathon and she extends Leo's grounding to a month. Davenport finds out about the jewelry box's disappearance, he punishes Adam, Bree and Chase by making them do every filthy, disgusting chore in the house without their bionics for a month.

Guest stars: Angel Parker as Tasha Davenport and Will Forte as Eddy.

Davenport and the kids attend a fan convention about the movie, Alien Gladiators. Adam, Bree and Chase queues up to meet Andre Ethier, but Caitlyn comes and makes them let her cut in line in front of them and she got the last spot to meet Andre Ethier. They fight with Caitlyn and are thrown in a security holding area with a fan boy. Meanwhile, Leo and Mr. Davenport are taking part in the Fire Staff Competition to get the walk-on role in the next Alien Gladiators Movie.

Guest stars: Michaela Carrozzo as Caitlin, Maile Flanagan as Principal Perry and Cameron Britton as Security Guard.

Special Guest stars: Karan Brar as Kal Zar and Andre Ethier as himself.

When Leo is chosen for a mission over Spin, Spin recruits Bob to join him on an unauthorized mission to prove themselves. They both end up stuck in quick sand and call on Leo to save them. After Leo rescues them, Mr. Davenport decides to move Leo up a color. Meanwhile, Principal Perry returns saying that she wants a job as head of security at the academy. After countless attempts, Mr. Davenport agrees leaving Leo in a particular despair. Meanwhile, Sebastian tries to help Chase get revenge on Adam with a virtual reality machine. After that, Chase tells him about his creator and how they took him out. At the end of the episode, Sebastian injures Mr. Davenport with his machine they used to prank Adam. The Lab Rats don't know it's him. When the Lab Rats take Donald to the medic, Sebastian turns evil and says that if they took away his father, then he is going to take away theirs.

Guest stars: Cole Ewing as S-3/Sebastian Krane, Salgado-Telis as Bob Krane, Max Charles as Spin Krane, Maile Flanagan as Terry Perry and Chris Grabher as Charlie Krane.

Bree's prank on Adam fails unexpectedly right before her date for the school winter dance causing an embarrassing scenario at the dance for Bree and Chase. Chase uses the face mask and becomes bree and Bree uses the face mask and becomes Chase, the masks glitch and stop working, so Chase who is as Bree has to go to the dance with the boy while Bree, who is as Chase has to suffer. While that, Leo and Douglas snoop in Mr. Davenport's briefcase and compete for what they think is to be his new vice-president only to find out it was for the Davenport Industries softball team.

Guest stars: Cody Griffin as Jake Chambers, Maile Flanagan as Principal Perry and Jeremy Kent Jackson as Douglas Davenport.

When the school mascot’s Dingo costume is stolen by the rival team, Adam seeks revenge by taking their mascot, a llama. When Chase and Adam try to return the llama they discover that the animal has swallowed hundreds of Davenport’s mechanical nanobots causing it to shoot acidic bionic spit. Meanwhile, Caitlyn gets Leo and Bree to help her win the domino contest, but she is to hard on them and Bree and Leo decide to compete against her in the domino contest.

Guest stars: Maile Flanagan as Principal Perry and Michaela Carrozzo as Caitlin.

Absent: Hal Sparks as Donald Davenport.

Habib Bank Plaza, located in Karachi was designed by Leo A Daly

Leo's scared by a shark movie so Adam and Chase use one of Davenport's sharks to scare him but it goes haywire and Adam, Chase, Leo and Janelle end up stuck in the house. In the end, Leo turns the sharks off. Meanwhile, Principal Perry enlists Bree and Mr. Davenport's help to get into a country club, but, when she make up lies that Mr. Davenport is her husband and Bree is her daughter and they have pottery around the world, Bree must use super speed to go places without the Country Club owner knowing about her bionics, eventually, Perry doesn't get in after the manager figures out the lies, but she decides to spend the summer with the Davenport's.

Guest stars: Madison Pettis as Janelle, Maile Flanagan as Principal Perry and Margaret Easley as Regina.