Four young German naval cadets begin their military service in 1940; only one of them will survive.
Hansjörg Felmy
as Teichmann
Sabine Bethmann
as Edith Wegener
Wolfgang Preiss
as U-Bootkommandant Lüttke
Horst Frank
as Heyne
Heinz Engelmann
as Erich Wegener, Flottillenchef
Siegfried Lowitz
as Leutnant Pauli
Dirk Dautzenberg
as Obermaat
Karl Lieffen
as Dr.Timmler
Mady Rahl
as Dora
Friedrich Schütter
as Oberleutnant Brandstetter
Loriot
as Matrose
Wolfgang Wahl
as Wächter
