The Alsos Mission, a joint US-UK secret team of nuclear experts was sent in 1945 to track down top German physicist Werner Heisenberg and the scientists and technology creating Germany's atomic weapons programme. It was a race against time, as the Allies were worried that the German's might develop an atomic weapon before the Manhattan Project. A great many thanks to the Hoover Institution Library and Archives at Stanford University for allowing me to use the Alsos Mission films for this video (Boris T. Pash Papers, Reels 1-4: "Alsos Mission Films")