While examining a World War II U-boat wreck, divers and historians discover a story of invention, heroism and the forerunner of stealth technology in use today.
Underwater detectives brave the waters of the English Channel to search for information about the SS Leopold, a ship that sank on Dec. 24, 1944.
A team of divers reveal the mysteries of the British warship Curacoa, which was sunk by the Queen Mary ocean liner.
Deep sea divers reveal how the "unsinkable" HMS Audacious now lies on the bottom of the sea 14 miles off of Ireland.
The sinking of British hospital ships.
Explores who or what sank the HMCS Regina.
A submarine is discovered on the seabed, off the coast of Cornwall.