Nazi Germany is collapsing, and the noose is tightening around Fürtenstein Castle, rear base of the Amerika Bomber project. Even as the last SS special forces set up the guidance elements for the intercontinental bomber, more and more ground and bases are yielded to the advancing Soviet forces. Anna, once a fanatical admirer of the Führer, is increasingly forced to face the terrible brutality of the regime she's defending. Meanwhile, Werner makes contact with a resistance cell ...