In Das Boot, set during the height of World War II, the fate of the Allies hangs in the balance as secret agent Amy Smith is tasked with uncovering a mysterious and destructive Nazi weapon. Rumors of a terrifying new device, commanded by Obersturmbannführer Hans Gruber, threaten to tip the scales in Hitler's favor. Amy, working under the direction of MI6 and the OSS, infiltrates Gruber’s command by exploiting his weakness for beautiful women, but things quickly spiral out of control. As an experimental U-boat embarks on a dangerous mission, Amy’s cover is blown, and she is forced to face dire consequences. The fate of the free world rests on her shoulders as she fights to escape, warn the Allies, and stop Hitler’s plans for domination.