The Nazis knew it was their last chance. The British knew it was the deadliest threat they'd ever face. And the Americans knew it could fall into the wrong hands. The V2 rocket quickly became Hitler's greatest deadly weapon and beacon of hope to turn the course of World War II in his favor. Watch Nazi Germany's desperate attempt at victory as the Allies race to stop them and see how the V2 miraculously went from deadly weapon to amazing feat of space technology.