Agent Joaquin recalls his latest mission while lying wounded in an ambulance: Joaquin has infiltrated into a band of smugglers. When the villains learn the truth about him, they kidnap Jouqin's fiancee. Santo comes to her rescue and fights the band.

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Main Cast: Joaquín Cordero, Jorge Marx, El Santo, Gina Romand, Fernando Osés, Enrique Zambrano

Director: Joselito Rodríguez

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