Three evacuation ships ... three wartime tragedies ... 20,000 lost lives. For those who believe the sinking of the Titanic was the greatest maritime disaster in history ... think again. GHOSTS OF THE BALTIC SEA documents how three German evacuation ships were torpedoed by Soviet submarines during the final stages of World War II. GHOSTS OF THE BALTIC SEA recounts the emotional stories of these ships through four survivors - two from the Gustloff, and one each from the Steuben and Goya. Dr. Robert Ballard - the marine scientist who discovered the Titanic, the USS Yorktown and the battleship Bismarck- joins the four survivors and together they use remote cameras to travel to the bottom of the cold, dark Baltic Sea to bring their chilling stories to light. Polish researchers assist Ballard in finding, identifying, and photographing the wrecks of the three ships.