Night of San Juan: Santo in Black Gold
Watch Night of San Juan: Santo in Black Gold for Free: How to Stream the Movie Online at 123Movies. . Santo is called in to stop robot terrorists from sabotaging oil supplies in Puerto Rico.
- Year: 1977
- Country: Puerto Rico, Mexico
- Genre: Action
- Studio: Puerto México Films
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- Director: Federico Curiel
- Cast: El Santo, Gilda Haddock, Rossy Mendoza, Luis Daniel Rivera, Roberto Rivera Negrón, Orlando Rodríguez