In the midst of World War II, the battle under the sea rages and the Nazis have the upper hand as the Allies are unable to crack their war codes. However, after a wrecked U-boat sends out an SOS signal, the Allies realise this is their chance to seize the 'enigma coding machine'.
Lt. Andrew Tyler
Lt. Cmdr. Mike Dahlgren
CPO Henry Klough
Lt. Pete Emmett
Maj. Matthew Coonen
Capt. Lt. Gunther Wassner
Lt. Hirsch
Bill Wentz
Ted Trigger Fitzgerald
Ronald Rabbit Parker
Steward Eddie Carson
Seaman Anthony Mazzola
Seaman Charles 'Tank' Clemens
Seaman Herb Griggs
Ens. Keith Larson
Mrs. Dahlgren
Prudence Dahlgren
Louise Dahlgren
Adm. Duke
Ensign
German Chief Hans
Lt. Kohn
German E-Chief
German Hydrophone Operator
German Planesman
German Engineer
German Lookout
German Bosun
British Seaman
