U-boat crewmen commissioned to undermine the British war effort by disrupting shipping lanes and cutting off supplies are caught in the North Atlantic, and endure a fraught and intense battle of wits with the enemy as they try to avoid near-certain destruction. Wolfgang Petersen's drama based on Lothar-Guenther Buchheim's autobiographical best-selling novel, with Jurgen Prochnow, Herbert Gronemeyer and Klaus Wennemann. In German.

A German submarine hunts allied ships during the Second World War, but it soon becomes the hunted. The crew tries to survive below the surface, while stretching both the boat and themselves to their limits.