Following the discovery of a doomsday machine capable of destroying Earth, the launch of a US space mission to Venus is taken over by the military.
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Bobby Van
Danny
Ruta Lee
Dr. Marion Turner
Mala Powers
Maj. Georgianna Bronski
James Craig
Dr. Haines
Grant Williams
Maj. Kurt Mason
Henry Wilcoxon
Dr. Christopher Perry
Essie Lin Chia
Girl Spy
Casey Kasem
Mission Control Officer
Lorri Scott
Lt. Katie Carlson
Denny Miller
Col. Don Price
Mike Farrell
1st Reporter
Mark Bailey
Major / Astronaut
Mary Meade
Woman Reporter
John Cestare
Raymond Mayo
Michael Christian
Lee Sholem
Director
Stanley Cortez
Director of Photography
Stuart J. Byrne
Screenplay
Harry Hope
Producer
Herbert J. Leder
Oscar Nichols
Executive Producer
James E. Schwarm
Art Direction
Original Story
