The first missile will hit London in five minutes. You have six minutes to stop the second one.

Engineer Rudi Graf always dreamed of sending a rocket to the moon. Instead, however, as a colleague of Wernher von Braun, he is forced to launch V-2s towards England from the Nazi-dominated Dutch coast. Graf - who is much more of a scientist than a soldier - needs all his strength to be able to comply with the guidelines set by the Nazi Party under the supervision of the SS, which is becoming more and more involved in the project. So when the German leadership begins to suspect sabotage, Graf becomes the number one suspect.

Meanwhile, young English intelligence officer Kay Caton-Walsh is trying to get by in the chaos of war. After she and her lover survive a V-2 missile attack in London, she enlists in a new unit sent by the RAF to Belgium. Kay and his companions use log strips and mathematics to determine the location of the Nazi firing positions, which they can then destroy. But in war-torn Belgium, you never know who you can trust. As the number of dead continues to rise, behind the story of Kay and Graf, the reader gets a glimpse of World War II. into the functioning of the German missile attacks of World War II, and you can follow how the destinies of two people working against each other eventually become intertwined.