Plots(1)
A group of four divers plunge into the ocean depths to explore a collection of air-filled sea caverns. But exploration soon turns to calamity when the oxygen cable on their diving bell snaps. With only the oxygen of the underwater caves to sustain them, the divers have mere hours before they will run out of air. Above the surface, Professor Millard Wyman (John Carradine) scrambles to locate another diving apparatus that will reach them in time and save those trapped below. (Echo Bridge Entertainment)
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