What's the weirdest wartime heist you've ever heard of? In today's Classic episode, Ben, Noel and Max return to one of their favorites: 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.