Transformers: Robots in Disguise S1:E4

Battle Protocol!

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.

An Explosive Situation

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.

Bullet Train to the Rescue

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.

The Hunt for Black Pyramid

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

The Secret of the Ruins

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

Sideburn's Obsession

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..

Secret Weapon: D-5

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.

Mirage's Betrayal

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

Skid-Z's Choice

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....

Tow-Line Goes Haywire

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

The Ultimate Robot Warrior

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

Hope for the Future

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

The Decepticons

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

Commandos

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).

Volcano

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

Attack from Outer Space

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

The Test

The Decepticons decide to defect.

The Fish Test

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

Wedge's Short Fuse

The Build team tire of buliding and decide to fight.

Landfill

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

Sky-Byte Saves the Day

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.

A Test of Metal

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

Ultra Magnus (1)

Ultra Magnus arrives and fights Optimus for the Matrix.

Ultra Magnus: Forced Fushion (2)

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

Lessons of the Past

The Autobots review the Decepticons.

The Two Faces of Ultra Magnus

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

Power to Burn!

Scourge offers Ultra Magnus a partnership to destroy Optimus.

Fortress Maximus (1)

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

Koji Gets His Wish (2)

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

A Friendly Contest

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

Peril from the Past

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

Maximus Emerges

The Decepticons capture Cerebros to activate Fortress Maximus.

The Human Element

Koji thinks he can control Fortress Maximus.

Mystery of the Ultra Magnus

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

Mistaken Identity

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

Surprise Attack!

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

Galvatron's Revenge (1)

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

The Final Battle (2)

The final showdown takes place.