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Season guide

Lab Rats: Season 3

26 episodes Premiered Feb 17, 2014
Previously on Lab Rats

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Lab Rats Season 2.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

42%
58%
Mytharc (11): Crucial lore & season climaxes
Core (15): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Sink or Swim (1)

Feb 17, 2014

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

S3·E2 Mytharc

Sink or Swim (2)

Feb 17, 2014

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

S3·E3 Core

The Jet-Wing

Feb 24, 2014

Since the lab is destroyed, the Lab Rats go without their capsules. This causes glitches in their bionics. In order to prevent this, Donald pulls off a huge stunt in a fiberglass

S3·E4 Core

Mission: Mission Creek High

Mar 3, 2014

Since Principal Perry knows that the Lab Rats are bionic, she wants to get in the action and go on a mission with them. When they stage a fake mission and take her down to the ne

S3·E5 Core

Zip It

Mar 10, 2014

Bree gets a part-time job at a tech-support store with Caitlin, but gets out-shined by Chase while he is talking to the manager of Tech Town, Scott. Chase sees how she feels late

S3·E6 Core

Not So Smart Phone

Mar 24, 2014

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 to get Principal Perry to spend her money when

S3·E7 Core

Scramble the Orbs

Apr 7, 2014

Leo invents his first high-end technological creation, a pair of attack orbs meant to protect the family, but when they can't differentiate between friend and enemy, they create

S3·E8 Core

Principal from Another Planet

Apr 14, 2014

During a lunar eclipse, Principal Perry arrives at the house to inform everyone that aliens are on the planet, much to the cha Bree, Chase, and Donald's chagrin, but Adam and Leo

S3·E9 Mytharc

Taken

Apr 21, 2014

Donald shows a new motorcycle to the Lab Rats when they get a video message from Douglas that Krane has lost it and implanted himself with more bionic abilities, abilities even h

S3·E10 Mytharc

Three Minus Bree

Jun 30, 2014

Bree is accepted for a semester abroad program in Australia, but when Donald learns about it, he refuses to let her go. When Donald again refuses to let her go to a concert with

S3·E11 Core

Which Father Knows Best?

Jul 7, 2014

As Donald attempts to repair Bree's damaged chip, the replacement chip keeps malfunctioning, much to Donald's frustration. Although Leo believes Douglas can help since he was the

S3·E12 Core

Cyborg Shark Attack

Jul 18, 2014

Leo's scared by a shark movie, so Adam and Chase use one of Donald's sharks to scare him, but it goes haywire and Adam, Chase, Leo, and Janelle end up stuck in the house. In the

S3·E13 Mytharc

You Posted What!?! (1)

Jul 28, 2014

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 vir

S3·E14 Mytharc

You Posted What!?! (2)

Jul 28, 2014

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 vir

S3·E15 Core

Armed and Dangerous

Sep 29, 2014

Leo tries to show off his bionic arm to Janelle. Meanwhile, Agent Graham promotes the Lab Rats as bionic celebrities, but when they realize they missed a mission because of him,

S3·E16 Core

Alien Gladiators

Oct 13, 2014

Donald and the Lab Rats attend a fan convention about the movie, Alien Gladiators. The Lab Rats queue up to meet Andre Ethier, but Caitlin comes and makes them let her cut in lin

S3·E17 Core

Brother Battle

Oct 20, 2014

Chase feels that it is unfair to be picked on by Adam every time and tells Donald. Douglas overhears and unlocks a new ability for Chase, upsetting the balance in the house. Doug

S3·E18 Mytharc

Spike Fright

Oct 24, 2014

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

S3·E19 Core

Face Off

Nov 10, 2014

Bree wants to get revenge on Adam for embarrassing her in front of her boyfriend, Jake. Working with Chase, she puts on a cyber cloak that makes her look and sound exactly like P

S3·E20 Core

Merry Glitchmas

Dec 1, 2014

During Christmas, when the Lab Rats discover that their new action figures are being outsold by another toy, The Nerble, they attempt to improve their toys by adding special featu

S3·E21 Mytharc

Rise of the Secret Soldiers (1)

Jan 26, 2015

The Lab Rats plan to gain good publicity by having cameramen film them during a mission, but it turns into a disaster when they fight for screen time. After the mission, the pres

S3·E22 Mytharc

Rise of the Secret Soldiers (2)

Jan 26, 2015

The Lab Rats plan to gain good publicity by having cameramen film them during a mission, but it turns into a disaster when they fight for screen time. After the mission, the pres

S3·E23 Core

Bionic House Party

Feb 2, 2015

Donald is in critical condition after the battle with Krane and his soldiers; Leo visits him in the hospital and in an attempt to save him, he risks his life to perform a dangero

S3·E24 Core

First Day of Bionic Academy

Feb 3, 2015

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 young

S3·E25 Mytharc

Adam Steps Up

Feb 4, 2015

Donald leaves the Lab Rats in charge of the bionic academy while he celebrates his anniversary with Tasha. Leo invites Janelle to the island, but gets distracted by his nemesis,

S3·E26 Mytharc

Unauthorized Mission

Feb 5, 2015

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 quicksand and call Leo to save