Sanctum

"Sanctum" follows a team of underwater cave divers on a treacherous expedition to the largest, most beautiful and least accessible cave system on Earth. When a tropical storm forces them deep into the caverns, they must fight raging water, deadly terrain and creeping panic as they search for an unknown escape route to the sea. Master diver Frank McGuire has explored the South Pacific's Esa-ala Caves for months. But, when his exit is cut off in a flash flood, Frank's team -- including 17-year-old… Show more son Josh and financier Carl Hurley -- are confronted with the unavoidable question: Can they survive, or will they be trapped forever?

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