V2

The first rocket will take five minutes to hit London.
You have six minutes to stop the second.

Rudi Graf used to dream of sending a rocket to the moon. Instead, he has helped create the world's most sophisticated weapon: the V2 ballistic missile, capable of delivering a one-ton warhead at three times the speed of sound. In a desperate gamble to avoid defeat in the winter of 1944, Hitler orders ten thousand to be built. Haunted and disillusioned, Graf - who understands the volatile, deadly machine better than anyone - is tasked with firing these lethal 'vengeance weapons' at London.

Kay Caton-Walsh is an officer in the Women's Auxiliary Air Force, and a survivor of a V2 strike. As the rockets devastate London, she joins a unit of WAAFs on a mission to newly liberated Belgium. Armed with little more than a slide rule and a few equations, Kay and her colleagues will attempt to locate and destroy the launch sites.