Johnny Sokko and His Flying Robot

The Transformed Humans (1x10)

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Dr. Over unleashes a horrific monster big enough to swallow a train - which it promptly does in order to kidnap a passenger, the head of the Kyoto Branch of the Unicorn Organization. Now transformed into a cyborg pawn for Gargoyle, the man tries to steal top-secret plans while the monster continues on a path of destruction!