An engineer, a psychologist and several other disparate types take part in an experiment to see if people can live for extended periods of time in a city built under the ocean.
Starring
William Lundigan
Bob Gage
Julie Adams
Dr. Monica Powers
Roy Roberts
Tim Graham
Carl Benton Reid
Dr. Junius Halstead
👤
Chet Douglas
Chuck Marlow
Paul Dubov
George Burnett
Karen Norris
Phyllis Gatewood
Kathie Browne
Dotty Steele
👤
Edward Mallory
Lt. Wally Steele
Edmund Cobb
Meade (uncredited)
👤
George DeNormand
Dr. Carl Wendt (uncredited)
👤
Paul Power
Author in Visiting Party (uncredited)
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