Every season of Transformers: Robots in Disguise ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Transformers: Robots in Disguise!

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.

Battle Protocol!

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 find them.

An Explosive Situation

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 fighting with the Predacons.

Bullet Train to the Rescue

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

Spychangers to the Rescue

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

The Hunt for Black Pyramid

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

The Secret of the Ruins

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..

Sideburn's Obsession

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 train because it is some sort of secret weapon and they try to steal it.

Secret Weapon: D-5

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

Mirage's Betrayal

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 a large race hoping to find Skid-Z but Megatron has his own plans....

Skid-Z's Choice

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

Tow-Line Goes Haywire

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

The Ultimate Robot Warrior

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

Hope for the Future

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

The Decepticons

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 Autobots. The Predacons show a few new tricks and for once, Skybite seems to get away with his plan... if it wasn't for Optimus Prime saving the day (but not the dam).

Commandos

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

Volcano

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

Attack from Outer Space

The Test

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

The Fish Test

The Build team tire of buliding and decide to fight.

Wedge's Short Fuse

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

Landfill

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.

Sky-Byte Saves the Day

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

A Test of Metal

Ultra Magnus arrives and fights Optimus for the Matrix.

Ultra Magnus (1)

While recuperating, Optimus is attacked by the Decepticons but saved by Ultra Magnus.

Ultra Magnus: Forced Fushion (2)

Lessons of the Past

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

The Two Faces of Ultra Magnus

Scourge offers Ultra Magnus a partnership to destroy Optimus.

Power to Burn!

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

Fortress Maximus (1)

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

Koji Gets His Wish (2)

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

A Friendly Contest

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

Peril from the Past

The Decepticons capture Cerebros to activate Fortress Maximus.

Maximus Emerges

Koji thinks he can control Fortress Maximus.

The Human Element

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

Mystery of the Ultra Magnus

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

Mistaken Identity

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

Surprise Attack!

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

Galvatron's Revenge (1)

The Final Battle (2)

Only Koji and the Autobots can save the Earth from the evil Predacons! The Predacons have been battling the Autobots for thousands of years, but this time, they've kidnapped the world's greatest minds, including Dr. Onishi, a brilliant scientist. Optimus Prime, the leader of the Autobots has dispatched his troops to try to save Onishi and the others, enlisting the help of Koji, Onishi's son. But can these heroes outwit the evil Megatron, leader of the Predacons in time to save the Earth?

The Best Seasons of Transformers: Robots in Disguise

The Best Seasons of Transformers: Robots in Disguise

Season 1