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Lab Rats Season 4 Episodes
Season 4 Episode Guide
26 Episodes 2015 - 2016
Episode 1
Bionic Rebellion: Part 1
Wed, Mar 18, 201541 mins
Adam, Bree, Chase & Leo find out that Sebastian and two other former soldiers have started a bionic rebellion because Adam, Bree & Chase took out Krane who is the soldiers' father. As they threaten to eliminate anyone who stands in their way, the four heroes have to think fast or the consequences could be fatal.
Episode 2
Bionic Rebellion: Part 2
Wed, Mar 18, 201520 mins
With Leo trapped in a room full of bionically-enhanced angry teenagers, and with Donald and Perry trapped in a tube shuttle to slowly die of suffocation, Adam, Bree and Chase must battle Sebastian, Lexi and Tank against their bid to take over the school before taking over the world. With the Davenport teens clearly outgunned, experience seems their only weapon by which to overcome superior firepower and abilities.
Episode 3
Left Behind
Wed, Mar 25, 201523 mins
The bionic trio believes the ex-soldiers need some time away from the island to experience real life (such as eating their first hamburgers). Donald adamantly disagrees; so the trio, believing they're right, sneaks their students off-island, leaving Leo behind to cover for them. Leo distracts Donald by appealing to his vanity, leading Big D to wonder how cool he would look in a mission suit. Problems arise for both parties when Bob and Spin, separated from the group, get left behind, and when Donald gets stuck inside Chase's mission suit.
Episode 4
Under Siege
Wed, Apr 1, 201522 mins
Doting Perry brings her nasty niece Kerry to the island school. Soon after, the school comes under attack by a stealthy assailant. Coincidence? Kerry falls under immediate suspicion, but evidence points to someone with bionics. Believing it to be a calculated effort at sabotage, Chase suspects that one of Sebastian's rebels, someone no one else knew about, may be at large and prepared to sink the floating school. Meanwhile, with Douglas also on hand, Perry's ready for romance, much to Douglas' disgust.
Episode 5
Bionic Dog
Wed, Apr 8, 201523 mins
Adam returns to the island with a dog, which turns out to be Douglas' long-lost dog Otis. Otis has bionics, as demonstrated by kicking Chase across the room with super strength, but what no one knows is that Krane implanted an additional ability along with a final directive: kill Douglas. Meanwhile, Leo and Bree go at odds with each other over a seductive smartphone app they can switch between two addictive personalities, Shelly and Liam, which Leo and Bree can't live without.
Episode 6
Mission Mania
Wed, Apr 15, 201521 mins
Chaffing at life under the obscuring shadows of Adam, Bree and Chase, Leo distributes personal business cards with a corresponding ad campaign to get himself noticed as a professional superhero. His un-sanctioned efforts bring in a flood of direct phone calls over the school's emergency lines, where none can distinguish real emergency calls from non. With attentions spread thin, Spin and Bob man the inundated phone lines as Leo, finding a real emergency, has trouble getting through for backup. Meanwhile, Douglas has unwanted help in trying to come up with a new invention that won't bring harm to the students.
Episode 7
Simulation Manipulation
Wed, Apr 22, 201523 mins
In a series of tests designed by Donald to evaluate student readiness and teacher effectiveness, Chase finds himself repeatedly losing to Adam. Blaming the students rather than his own dictatorial teaching style, Chase uses his bionics to swing the last test in his favor, only to have it put his team at a decided disadvantage. Meanwhile, Leo seeks evidence to prove which roommate is the bigger slob - Adam or Chase.
Episode 8
Forbidden Hero
Wed, Jul 1, 201523 mins
In pampering Leo while he nurses a sprained ankle (milking his injury for all its worth), Tasha discovers that his participation in superhero missions has not been at the safe distances she's been lead to believe. As she readies to play the parent card on Leo for his protection, Adam tries horning in on something he sees that he's never had his entire life - abject mothering. Meanwhile, Bob's infatuation with Bree takes a nosedive when an uninvited guest invades the island, drawing Bob's interest and pulling Bree into a social battle for something she doesn't want.
Episode 9
Spider Island
Wed, Jul 8, 201523 mins
Donald has taken the student body out on its first official field trip, leaving Douglas, the bionic mentors, and Leo (who skipped the trip) with the island to themselves for a rare "day off." For fun, Douglas and Chase bring a long-extinct prehistoric sea-spider back to life. Trouble comes in not knowing the spider is lethally toxic, in forgetting that trouble often follows Leo, and in Douglas "helping" the spider with a genetic improvement.
Episode 10
Spike vs. Spikette
Wed, Jul 15, 201523 mins
When Douglas decides to inventory the hidden abilities of all the ex-soldiers, he discovers that Chase isn't the only bionic teenager with a Commando app. Kate's got it. Despite warnings, Chase triggers the app to see and study what it's like; however, the glitchy app won't shut off, and timid Kate becomes the overly aggressive and destructive Spikette. Spike (in Chase) is deliberately triggered to subdue her, but when that plan backfires (Spike siding with Spikette), Douglas installs Bree with a Commando app for her to fight the pair as Spikerella. Meanwhile, Adam creates an obedient drone that accidentally brings to the island a civilian kid who insists on staying.
Episode 11
Space Elevator
Wed, Jul 29, 201523 mins
Dr. Ryan (Donald's top scientist) comes to the academy to test "his" latest project, which turns out to be Chase's project that Donald passed along without giving Chase notice or credit. Meanwhile, nearing the end of the school term, everyone at the academy is advancing to the next color level. All, that is, except sweet-souled Bob, for whom Bree and Adam enlist Perry's aid to see that he toughens up and passes.
Episode 12
Bionic Action Heroes: Part 1
Wed, Aug 5, 201530 mins
When Douglas gets a call from Giselle (an old flame) about making a bionic heroes movie, they're told that her film centers about one bionic hero (Troy) who has all of Adam, Bree and Chase's bionic abilities, but when the team visits the set, they discover there is no movie and have to protect themselves from Giselle's secret army of killer androids.
Episode 13
Bionic Action Heroes: Part 2
Wed, Aug 5, 201530 mins
Having won an initial battle against Giselle and Troy, the bionic team scrambles to find the abducted Chase before Giselle has time to cut him open for his bionic chip. To derail the team's search efforts, Giselle sends a newer model android to cause mayhem at the bionic academy. Chase, meanwhile, restrained upon Giselle's lab table, engages his other app abilities to derail Giselle's efforts in ending his life.
Episode 14
One of Us
Wed, Aug 12, 201523 mins
S-1 returns, but this time she needs help. Suffering flashbacks of Krane, they discover she harbors a virus, but she's soon not the only one. The entire bionic student body (except for Leo, but including Adam, Bree, and Chase) contracts the virus through their triton apps, and if they don't get rid of it, they will die. Meanwhile, Adam and Bree try to have a great day before the end.
Episode 15
Lab Rats vs. Mighty Med: Part 1
Wed, Jul 22, 201544 mins
Following a five-year effort, Donald and Chase finally finish co-creating a new and revolutionary power source, the Daven-Chase Energy Transponder, for which Donald publicly takes full credit. Donald's total exclusion of Chase in privately lining up a manufacturer leaves Chase bitter and susceptible when a cunning businessman arrives at the island, a man who in reality is The Incapacitator, a supervillain, who thereafter levels Chase and steals the Transponder. Invading the island as well are goofballs Kaz and Oliver from Mighty Med, secretly looking for bionics to make themselves superheroes. When three real superheroes next arrive seeking The Incapacitator, confusion leads to fighting, superheroes versus bionic heroes, with Chase getting seriously hurt. Kaz and Oliver reveal their true selves and whisk Chase off to Mighty Med for life-saving treatment.
Episode 16
Bob Zombie
Wed, Sep 30, 201523 mins
Douglas builds a device capable up upgrading all the bionic students (sans Adam, Bree and Leo) to Chase's intelligence level. Suddenly bereft of peers, Adam attempts to reduce everyone back to normal but goes too far, reducing them to the intelligence of bleating goats (with appetites to match). Meanwhile Perry, discovering Donald never had his island properly chartered, signs the paperwork to set herself up as its dictator, renaming the island Perryland.
Episode 17
Human Eddy
Wed, Oct 14, 201523 mins
When Perry blames her lazy job performance on security tasks that are too much for one person alone, Donald resolves the issue by giving Eddy (his artificial-intelligence home security system) a synthetic humanoid body and making him (with some programming modifications) Perry's assistant. Trouble comes when Perry, disliking Human Eddy's new "nice" personality, overrides his programming to bring back the snarky Eddy everyone knows and loathes. Meanwhile, Adam becomes an unexpected rival during Chase's interview for a seat on the President's environmental committee.
Episode 18
The Curse of the Screaming Skull
Wed, Oct 21, 201523 mins
Despite Douglas' warning to stay away, Perry, Bree, Chase and Leo visit a nearby island where Perry finds a metal skull. She brings it back to the academy with intent to sell it on the Internet, but Leo, influenced by a recently seen horror movie marathon, thinks it's cursed. When Chase tries to return the skull to the island, bad things start happening, confirming Leo's suspicions. Bob, unfamiliar with Halloween and seeing Chase set up life-threatening "pranks," thinks it's all a part of Halloween fun. The group eventually restrains the now maniacal Chase as Bree zips off to return the allegedly cursed skull to the island. Belatedly aware of the situation, Douglas confesses the skull was his, which he buried when it became infected with a virus (created during his evil days) that turns whoever touches it into a psychotic killer. Nanobots might provide a remedy for the bionic teens, but can anyone get past Bree's super-speed or Chase's telekinesis?
Episode 19
Lab Rats: On the Edge, Part 1
Wed, Nov 11, 201545 mins
When the President overlooks Leo for an upcoming commemorative citation to the bionic team, Leo reacts by forming his own bionic team, comprising himself as leader with Taylor (f.k.a. S-1) and Logan (for whom Leo is his personal hero). Dismissing Chase's dictate to go no farther with a new superpower, Leo aims to prove his merit as both a bionic hero and a team leader by demonstrating the full electro-magnetic pulse capability that emerged while training with Taylor. The demo goes terribly awry, putting Taylor in critical condition. She survives (just) but must now live with a permanent injury, for which Leo decides he must leave the island. Meanwhile, Douglas and Adam take a demolition-happy hand in Donald's development of an indestructible limousine for the President.
Episode 20
Lab Rats: On the Edge, Part 2
Wed, Nov 11, 2015
Guilty of unintentionally blinding a teammate, Leo moves back to Mission Creek, eschewing the mantle of leadership or of being a bionic superhero. Donald, Douglas, Chase, Bree and Adam, en route to their Presidential service award, end up trapped inside Donald's self-driving, indestructible car as a catastrophe befalls the bridge they're crossing, putting their lives in mortal peril. Without thinking twice about it, Leo ends his self-exile to come to their aid, hoping his efforts will be enough.
Episode 21
Ultimate Tailgate Challenge
Wed, Dec 2, 201521 mins
When Tasha gets everyone except Perry tickets to the big college football game, Perry creates mayhem. At the game, Perry and Donald go head-to-head in an ultimate tailgate challenge judged by former NFL athlete Willie McGinest.
Episode 22
And Then There Were Four
Wed, Jan 13, 201622 mins
Douglas' announcement that there's a fourth bionic offspring in the family - one he gave over to an adoptive family that gave him a normal, non-bionic life - triggers bickering among the Davenports over lies and family secrets, prompting them to gleefully air many hurtful disclosures at one another. Daniel hydroloops to the island academy to meet his dad, his uncle and his "cousins" (since Douglas fears immediately disclosing Adam, Bree and Chase as his siblings). Before Douglas reveals to Daniel that he has unactivated bionic capabilities, proximity to Bree's capsule awakens them, bestowing him with the capacity to match the abilities of any bionic being he touches.
Episode 23
Space Colony: Part 1
Wed, Jan 20, 201622 mins
Donald reveals his latest enterprise: a space colony built on the planet Lithios in a galaxy he discovered far, far away. With fifty hand-picked colonists already stationed at "Davenportia," Donald takes his family on an outer space vacation to join them. Problems soon arise when the communications satellite ceases to function and a hole appears in the colony's dome. As the bionic teens address the satellite problem, Adam literally gums up Chase's equipment, causing him to be lost in space. Back at the dome, Donald and Leo struggle to patch the hole, only to confront an old foe they thought long ago vanquished.
Episode 24
Space Colony: Part 2
Wed, Jan 20, 201623 mins
Krane introduces his evil cohort, Dr. Gao, who reveals his development of liquid bionics in their plan to conquer Donald's space colony and replace Earth's soon-to-be annihilated population with a bionic civilization. With Donald under Krane's mind control, the teens destroy the dome and flee back to Earth in the intergalactic spacecraft, taking Donald, Tasha, Perry and the colonists. As Krane comes after them in a weaponized shuttle, Dr. Gao teleports aboard and puts Leo under his mind control. Following a decisive space battle against Krane and a control room scuffle against Leo and Dr. Gao, it falls to Adam, do or die, to save Earth from Krane's atomic missile sent to trigger a nuclear winter.
Episode 25
The Vanishing: Part 1
Wed, Feb 3, 201623 mins
The initial excitement over Donald and Douglas's bionic upgrade wanes when they discover that it can't apply to Bree, Chase or Adam (as their bionics stem from earlier technology). Only Adam can face their projected obsolescence with ease. Meanwhile, following a run-in with the law, Daniel joins the academy as its newest student, with Leo as his appointed mentor. While training, several students notably vanish. Soon all the former ex-soldiers (plus Daniel) are gone. An emergency message soon solves the mystery: Giselle has returned to destroy them all.
Episode 26
The Vanishing: Part 2
Wed, Feb 3, 201623 mins
With Donald and Douglas bound back-to-back in chairs, Gisele forces Donald to watch as she burns out the bionic chips of the academy students and his family before slowly torturing them to death. For Douglas, she lets Marcus enjoy bouncing Daniel around the room awhile, like a cat toying with a mouse, before delivering the lad's inevitable coup de grâce. Overlooked, Leo's half-bionic status provides a chance to thwart her plans; and, given his druthers, he'd like nothing more than a minute or two to settle an old score with Marcus.