
Transformers: Robots in Disguise
S01E08: 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.
Overview
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?
Episodes

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.

S01E02 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.

S01E03 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.

S01E04 Spychangers to the Rescue
The Spychangers, a squad of Autobot stealth soldiers, are deployed to safeguard a generator the Predacons are after.

S01E05 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.

S01E06 The Secret of the Ruins
Sideburn and Koji investigate a cavern, with Sky-Byte not far behind.

S01E07 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..

S01E08 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...

S01E09 Mirage's Betrayal
Mirage turns against his friends and joins the Predacons. But is it even real?

S01E10 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...

S01E11 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.

S01E12 The Ultimate Robot Warrior
The Predacons think the humans have a Transformer, and decide to steal it.

S01E13 Hope for the Future
The Autobots review the Predacons actions, in hopes of finding a way to proceed.

S01E14 The Decepticons
Megatron captures a set of protoforms and forms a newer, more classical faction of troops... the Decepticons.

S01E15 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...

S01E16 Volcano
The Predacons attack a carribean island but in doing so, activates a volcano.

S01E17 Attack from Outer Space
Movor takes the place of a shuttle to attack the Autobots from space.


S01E19 The Fish Test
Sky-Byte attacks the Autobots to disprove a test that says he's a jellyfish.


S01E21 Landfill
The Decepticons gain access to the global space bridge and reprogram it so the Autobots arrive in random locations.

S01E22 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.

S01E23 A Test of Metal
The Bulid Team alters the space bridge so they can fight the Decepticons on their own.


S01E25 Ultra Magnus: Forced Fushion (2)
While recuperating, Optimus is attacked by the Decepticons but saved by Ultra Magnus.


S01E27 The Two Faces of Ultra Magnus
Sky-Byte offers Ultra Magnus an alliance, providing he can prove he can be trusted.


S01E29 Fortress Maximus (1)
The Decepticons and Autobots search for ruins that are in fact, Cybertronian.

S01E30 Koji Gets His Wish (2)
Koji is finally reunited with his father, thanks to Sky-Byte.

S01E31 A Friendly Contest
The Build Team and the Autobot Brothers compete to find O-parts.

S01E32 Peril from the Past
After putting the O-parts together, the Autobots find an ancient power source.



S01E35 Mystery of the Ultra Magnus
Megatron and the Decepticons review the actions of Ultra Magnus in hopes of finding a way to defeat him.

S01E36 Mistaken Identity
Koji switches places with a friend, who is captured by the Decepticons so they can control Fortress Maximus.

S01E37 Surprise Attack!
The Decepticons discover the Autobot base and attacks to steal Cerebros.

S01E38 Galvatron's Revenge (1)
Galavatron captures the children of the world to force the Autobots to leave.
