What would it take to bomb the Allies into the ground? This was the question on the minds of top Nazi brass as they mobilized Germany's top scientists to create frightening new bombs. It was a history of firsts, from the Fritz X, the world's first precision guided weapon deployed during combat, through the iterations of V1 and V2 bombs that rained down during the Blitz. What horrifying weapons like the V-3 were never unleashed? And how much longer ? With Hitler's sights set on bombing America, how close did the world come to widespread annihilation?