At the end of World War II, a Royal Navy submarine on routine patrol strikes and detonates a mine. The subsequent explosion sinks the submarine, killing most of its crew. Frantic efforts are taken to rescue those remaining alive.
Overview：At the end of World War II, a Royal Navy submarine on routine patrol strikes and detonates a mine. The subsequent explosion sinks the submarine, killing most of its crew. Frantic efforts are taken to rescue those remaining alive.
