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.
transformers-robots-in-disguise-ep-8-2Transformers: Robots in Disguise Season 1 Episode 8
Transformers: Robots in Disguise Season 1 Episode 8
Secret Weapon: D-5
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