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. Jürgen Prochnow, Herbert Grönemeyer, Klaus Wennemann, Hubertus Bengsch, Martin Semmelrogge, Bernd Tauber, Erwin Leder Added on Amazon Prime 2023-04-10. Youtube Trailer