Johnny Sokko and His Flying Robot

Drakulon: Creature of Doom (1x25)

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A member of the Japan Branch of Unicorn is on night patrol. At the entrance of a town he finds a girl who is half frantic with fright. The girl explains that all the people of the town are dead. The town is inhabited completely by vampires and their leader Drakulon, plans to take over the world with his army of the undead!