Santo goes up against a mad scientist and a ranch owner who are turning immigrants into mind controlled zombies.

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Main Cast: El Santo, Miguel Ángel Fuentes, Gerardo Reyes, Carmen del Valle, Carlos Suárez, Jean Safont, Federico Falcón, Sarita Gómez, Fernando Yapur, César Gómez

Director: Rafael Pérez Grovas

Writers: Carlos Suárez, Sergio David, Rafael Pérez Grovas

Editor: Alfredo Jacome

Cinematographer: Alfredo Uribe

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