In February 1945, an unidentified flying object with German insignia appears in the sky. It effortlessly defeats the latest German fighter-bomber in a comparative flight. Does Hitler possess a wonder weapon? A resistance fighter panics and alerts his allies. In Düsseldorf, Nikolas Brandenburg is completely unaware of this. He constantly thinks about the daughter of his deceased friend. Is she really still alive, as his arch-enemy Luger claimed? Nikolas sets out for Luger in Wewelsburg, the SS's stronghold.