Hidden in the shadows of World War II was a secret mission that changed the course of history. Operation Crossbow was the Allies’ daring campaign to uncover and destroy Nazi Germany’s most terrifying technological threats — the V-1 “Flying Bomb” and the V-2 Rocket, Hitler’s so-called “vengeance weapons.” These advanced missiles were unlike anything the world had ever seen — capable of striking cities from hundreds of miles away, raining terror on London and beyond. Behind enemy lines, brave inte