RAF pilot Stephen Jenner, having escaped from a World War Two prisoner of war camp, finds himself face to face with a German general, fresh from the Russian Front.General Gerhardt, having witnessed unspeakable atrocities in the East, has turned against Hitler, along with his son and twin daughters. Both girls are arrested by the Gestapo for sheltering a Jewish family.The General, seeking vengeance against the Nazi regime, has privileged knowledge of the Karinfeld Project, Herman Göring's last ditch answer to the endless Allied bomber raids.An experienced pilot is needed to put the General's delicious revenge into effect and Jenner is happy to oblige.