The Abyss - SE

When an American nuclear submarine is mysteriously attacked by an unidentified vessel, the crew of Deepcore - an underwater oil drilling platform - reluctantly agrees to investigate the wreckage. But 2,000 feet down they discover the sub poised on the craggy brink of the Caymen Trough - an Abyss some 2 1/2 miles deep. So begins an incredible adventure as the crew are thrust into the black heart of the Abyss to confront a force so awesome, so powerful that it could destroy mankind itself, and they realise that they alone can save the world from the terrifying secret that lies deep within The Abyss.