Operation Gunnerside: How a Crew of Military Skiers Ruined the Nazi Bomb

Italian army maneuvers in the snow, circa 1935. Hulton Archive / Getty Images

On February 27, 1942, nine saboteurs set out in the middle of the night to blow up a Nazi-controlled heavy water plant in Norway. This operation was as crucial as it was complicated -- if the plant continued to function, the Nazis very well may have been able to construct an atomic bomb. Tune in to learn exactly how the commandos glided in and, eventually, skied away.