In 1939 German U-boat captain Günther Prien receives orders to infiltrate the British Royal Navy base at Scapa Flow and sink British warships.

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Main Cast: Dieter Eppler, Sabine Sesselmann, Joachim Fuchsberger, Harald Juhnke, Dieter Borsche, Olga Tschechowa, Horst Naumann, Heinz Engelmann, Michael Cramer, Peter Carsten

Director: Harald Reinl

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