"In 1939 German U-boat captain Günther Prien receives orders to infiltrate the British Royal Navy base at Scapa Flow and sink British warships."
Dieter Eppler
as Kapitän Günther Prien
Sabine Sesselmann
as Ingeborg Prien
Joachim Fuchsberger
as Oberleutnant Thomas Birkeneck
Harald Juhnke
as Der Smut
Dieter Borsche
as Pfarrer Kille
Olga Tschechowa
as Fürstin
Horst Naumann
as Leitender Ingenieur
Heinz Engelmann
as Besatzungsmitglied
Michael Cramer
Peter Carsten
Matthias Fuchs
as Jörg Christiansen
Joachim Mock
as Kapitänleutnant Schopf
Ernst Reinhold
as Leutnant Raufuss
Raidar Müller-Elmau
as Leutnant Bluhm
Richard Häussler
as Kommodore
Uta Hallant
as Alwine Kille
Klaus Dahlen
as Matrose
as
Peter Herzog
Waldemar Frahm
Rolf Moebius
as Stabschef
Harry Raymon
as Richards
Eva Schreiber
Emmerich Schrenk
as Gefängnisdirektor
Werner Stock
as Piontek
Rolf Weih
as Admiralstaboffizier
Harald Reinl
Director