When the cable breaks on their diving bell four people find themselves trapped in a hidden underwater world.
When the cable breaks on their diving bell four people find themselves trapped in a hidden underwater world.
Top Cast
John Carradine
Character: Prof. Millard Wyman
Robert Clarke
Character: Craig Randall
Phyllis Coates
Character: Dale Marshall
Allen Windsor
Character: Paul Whitmore
Sheila Noonan
Character: Lauri Talbott
George Skaff
Character: Dr. J.R. Matheny
Maurice Bernard
Character: Old Man in the Caverns
Joe Maierhouser
Character: Jim Wyman
Lloyd Nelson
Character: Wilson, Sonar Man
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