In this episode, Roger Moorhouse brings to light arguably the worst maritime disaster in history, the sinking of the German armed military transport ship, Wilhelm Gustloff, in January 1945. Roger and Dan discuss the circumstances and terrible outcomes of the disaster after first looking at the often ignored background of the ship, which had acted as a cruiseliner in the Nazi programme of Kraft durch Freude (Strength Through Joy). Moorhouse is a specialist in modern German history, particularly the Third Reich.