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.

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

Genre:Action, Adventure, Mystery,

country:Cuba, Mexico,

Production:none