After undersea explosions near a Caribbean island, prehistoric creatures are unleashed on the unsuspecting population.

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Main Cast: Ward Ramsey, Paul Lukather, Kristina Hanson, Alan Roberts, Fred Engelberg, Wayne C. Treadway, Luci Blaine, Howard Dayton, Jack Younger, James Logan

Director: Irvin S. Yeaworth Jr.

Writers: Dan E. Weisburd, Jean Yeaworth

Editor: John A. Bushelman

Cinematographer: Stanley Cortez

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