Iron Sky - The book based on the movie

Just before the end of World War II, the Nazis managed to reach the moon aboard huge flying disks, the so-called Reichsflugscheiben, and settled on the dark side of the moon. When they are discovered by an American moon landing in 2018, the Nazis decide that the time has come to reach out for world domination once more. The destiny of human kind rests on the shoulders of Renate Richter, a teacher who is deeply committed to Nazi ideology. However, after she arrives on Earth, Renate soon realizes that her entire life has been blinded by a lie. How is she supposed to stop her power hungry fiance Klaus Adler and his gigantic space ship, the Gotterdammerung?