Shipwreck: The Mystery of the Edmund Fitzgerald: Chronicles the history of the legendary Edmund Fitzgerald, which sank in a violent storm with the loss of the entire crew in Lake Superior on November 10, 1975. In the summer of 1995, the Great Lakes Shipwreck Historical Society, National Geographic Society, Canadian Navy, and Sony Corporation descended to the site of the wreck, more than 500 feet below the surface of the lake. This documentary takes a look at their expedition.