Mysterious Doctor Satan

Year: 1940

Runtime: 267 mins

Language: English

Directors: William Witney, John English

AdventureCrimeAction

Mad scientist Dr. Satan plots to steal advanced technology and build a robot army to conquer America. His only foe is Bob Wayne, the masked vigilante known as the Copperhead, who seeks justice for his step‑father’s death. The 1940 serial follows their clash as Satan pursues world domination and the Copperhead battles to stop him.

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