The first rocket will take five minutes to hit London. You have six minutes to stop the second.Rudi Graf has dreamt since childhood of sending a rocket to the moon. Instead, along with his friend Werner von Braun, he has helped create the world's most sophisticated weapon - the V2 ballistic missile, capable of delivering a one-ton warhead that travels at three times the speed of sound.In a desperate gamble to avoid defeat, Hitler orders 10,000 to be built. Now, in the winter of 1944, Graf finds ...