12 reactions | During the WW2, the Nazis' efforts to develop an atom bomb were met with the Allies' struggle to prevent it from happening, leading to a dangerous sabotage mission in the Norwegian mountains. The Heavy Water War, watch tonight at 10pm or stream now: www.knowledge.ca/program/heavy-water-war | Knowledge Network | Facebook

British agents sabotaged a Nazi heavy-water plant in Norway — crippling Hitler’s atomic project before it began. The mission was so dangerous, most commandos never came back. #BritainAtWar #WW2 #Spies #OperationGunnerside #HistoryShorts | Britain At War