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Four members of a deep-sea expedition find themselves trapped in a maze of mysterious underwater caves when the cable on their diving bell snaps and the rest of their shipmates are forced to abandon them. 1950s-era B-movie director Jerry Warren helms this campy sci-fi adventure starring John Carradine, Robert Clarke, Phyllis Coates, Allen Windsor and Sheila Noonan.
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- DVD
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- CC
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