The Poseidon Project () Adventure, China, Documentary, History, United Kingdom The Poseidon Project () Duration: 1H22M Description: In 1931, Britain’s most advanced submarine collided with a cargo ship off the coast of China and sank. Three hours later, six sailors surfaced, barely conscious. They were the first men ever to escape from a sunken submarine using….. Trailer ↗ China United Kingdom Documentary Adventure History
