
The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.
Genres:

Marshall Thompson as Carruthers

Shirley Patterson as Ann Anderson

Kim Spalding as Van Heusen

Ann Doran as Mary Royce

Dabbs Greer as Eric Royce

Paul Langton as Calder

Robert Bice as Purdue

Richard Benedict as Bob Finelli

Richard Hervey as Gino

Thom Carney as Kienholz

Ray Corrigan as It
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