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Season guide

Transformers: Robots in Disguise: Season 1

39 episodes Premiered Apr 5, 2000 Updated Jul 20, 2026
Season 1 Episodes

Episode Guide

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Season 1: Filler vs. Essential Canon

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

8%
92%
Mytharc (3): Crucial lore & season climaxes
Core (36): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Battle Protocol!

Apr 5, 2000 · 25 min

The Predacons assault New York City to kidnap gifted scientist Dr Kenneth Onishi. Kenneth's son Koji joins forces with the Autobots to save him.

S1·E2 Core

An Explosive Situation

Apr 12, 2000 · 25 min

The Autobots bring Koji to there secret headquarters while the Decepticons go power hungry looking for power to move there base to another location so that the Autobots can not f

S1·E3 Core

Bullet Train to the Rescue

Apr 19, 2000 · 25 min

The Predacons are taking control over Linear RFG - the world's fastest bullet train. So, Optimus Prime is mobilizing Team Bullet Train to stop the train, while the others are fight

S1·E4 Core

Spychangers to the Rescue

Apr 26, 2000 · 25 min

The Spychangers, a squad of Autobot stealth soldiers, are deployed to safeguard a generator the Predacons are after.

S1·E5 Core

The Hunt for Black Pyramid

May 3, 2000 · 25 min

The Predacons discover a Black Pyramid, a source of great power, and attempt to harness it for their own purposes.

S1·E6 Core

The Secret of the Ruins

May 10, 2000 · 25 min

Sideburn and Koji investigate a cavern, with Sky-Byte not far behind.

S1·E7 Core

Sideburn's Obsession

May 17, 2000 · 25 min

The Predacons take advantage of Sideburn's lust for red sports cars, to lure him into a trap. Once they have Sideburn, they hope to reel in Optimus as well..

S1·E8 Core

Secret Weapon: D-5

May 24, 2000 · 25 min

Koji is invited to take a trip on an old steam engine called D-5. Team Bullet Train travel beside the train as well. The Predacons think that Team Bullet Train is following the tra

S1·E9 Core

Mirage's Betrayal

May 31, 2000 · 25 min

Mirage turns against his friends and joins the Predacons. But is it even real?

S1·E10 Core

Skid-Z's Choice

Jun 7, 2000 · 25 min

The New Autobot Skid-Z arrives on earth. He scans an old racing car but in doing so he is given a competitive instinct to race anyone anywhere. Knowing this, all the Autobots enter

S1·E11 Core

Tow-Line Goes Haywire

Jun 14, 2000 · 25 min

The Autobot Tow-Line enjoys towing away law-offenders, including his own friends. The Predacons scheme to use this quirk to their advantage.

S1·E12 Core

The Ultimate Robot Warrior

Jun 21, 2000 · 25 min

The Predacons think the humans have a Transformer, and decide to steal it.

S1·E13 Core

Hope for the Future

Jun 28, 2000 · 25 min

The Autobots review the Predacons actions, in hopes of finding a way to proceed.

S1·E14 Core

The Decepticons

Jul 5, 2000 · 25 min

Megatron captures a set of protoforms and forms a newer, more classical faction of troops... the Decepticons.

S1·E15 Core

Commandos

Jul 12, 2000 · 25 min

Megatron's plan to force mankind to surrender by blowing up their power-producing dams sinks like X-Brawn, Prowl and Sideburn, when his Decepticon Commando is thwarted by imposter

S1·E16 Core

Volcano

Jul 19, 2000 · 25 min

The Predacons attack a carribean island but in doing so, activates a volcano.

S1·E17 Core

Attack from Outer Space

Jul 26, 2000 · 25 min

Movor takes the place of a shuttle to attack the Autobots from space.

S1·E18 Core

The Test

Aug 2, 2000 · 25 min

The Decepticons decide to defect.

S1·E19 Core

The Fish Test

Aug 9, 2000 · 25 min

Sky-Byte attacks the Autobots to disprove a test that says he's a jellyfish.

S1·E20 Core

Wedge's Short Fuse

Aug 16, 2000 · 25 min

The Build team tire of buliding and decide to fight.

S1·E21 Core

Landfill

Aug 23, 2000 · 25 min

The Decepticons gain access to the global space bridge and reprogram it so the Autobots arrive in random locations.

S1·E22 Core

Sky-Byte Saves the Day

Aug 30, 2000 · 25 min

The Predacons plan to destroy a tower, but when they realize that they can get the O-Parts in exchange for the hostages, Sky-Byte has a change of heart.

S1·E23 Core

A Test of Metal

Sep 6, 2000 · 25 min

The Bulid Team alters the space bridge so they can fight the Decepticons on their own.

S1·E24 Core

Ultra Magnus (1)

Sep 13, 2000 · 25 min

Ultra Magnus arrives and fights Optimus for the Matrix.

S1·E27 Core

The Two Faces of Ultra Magnus

Oct 4, 2000 · 25 min

Sky-Byte offers Ultra Magnus an alliance, providing he can prove he can be trusted.

S1·E28 Core

Power to Burn!

Oct 11, 2000 · 25 min

Scourge offers Ultra Magnus a partnership to destroy Optimus.

S1·E29 Core

Fortress Maximus (1)

Oct 18, 2000 · 25 min

The Decepticons and Autobots search for ruins that are in fact, Cybertronian.

S1·E30 Core

Koji Gets His Wish (2)

Oct 25, 2000 · 25 min

Koji is finally reunited with his father, thanks to Sky-Byte.

S1·E31 Core

A Friendly Contest

Nov 1, 2000 · 25 min

The Build Team and the Autobot Brothers compete to find O-parts.

S1·E32 Core

Peril from the Past

Nov 8, 2000 · 25 min

After putting the O-parts together, the Autobots find an ancient power source.

S1·E33 Core

Maximus Emerges

Nov 15, 2000 · 25 min

The Decepticons capture Cerebros to activate Fortress Maximus.

S1·E34 Core

The Human Element

Nov 22, 2000 · 25 min

Koji thinks he can control Fortress Maximus.

S1·E35 Core

Mystery of the Ultra Magnus

Nov 29, 2000 · 25 min

Megatron and the Decepticons review the actions of Ultra Magnus in hopes of finding a way to defeat him.

S1·E36 Core

Mistaken Identity

Dec 6, 2000 · 25 min

Koji switches places with a friend, who is captured by the Decepticons so they can control Fortress Maximus.

S1·E37 Core

Surprise Attack!

Dec 13, 2000 · 25 min

The Decepticons discover the Autobot base and attacks to steal Cerebros.

S1·E38 Mytharc

Galvatron's Revenge (1)

Dec 20, 2000 · 25 min

Galavatron captures the children of the world to force the Autobots to leave.