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The crew of a German u-boat on a mission in the North Atlantic witness strange phenomena on board. After an inexplicable explosion in the engine room, the submarine slowly sinks to the abyssal depths, while madness decimates the submariners.
The crew of a German u-boat on a mission in the North Atlantic witness strange phenomena on board. After an inexplicable explosion in the engine room, the submarine slowly sinks to the abyssal depths, while madness decimates the submariners.