In the midst of planning the Manhattan Project, the U.S. Office of Strategic Services created a secret offshoot - the Alsos Mission - meant to gather intelligence on and sabotage if necessary, scientific research by the Axis powers. At its heart was the 'Lightning A' team, a group of intrepid soldiers, scientists, and spies who were given almost free rein to get themselves embedded within the German scientific community to stop the most terrifying threat of the war: Hitler acquiring an atomic bomb of his very own