The Mediterranean, 1941/42 - Axis forces are using frogmen and manned torpedoes to attack previously impregnable harbours. The Allied forces need to come up with something to answer this threat, which they find in the form of Lt. Lionel "Buster" Crabb.
as Lieutenant "Buster" Crabb, R.N.V.R.
as Leading Seaman Knowles
as Third Officer Jill Masters, W.R.N.S
as The Admiral
as Chief Petty Officer Thorpe
as Able Seaman Morgan
as Able Seaman Fraser
as Ordinary Seaman Thomas
as Tomolino
as Conchita
as Forzenelli
as Rosati
as Fellini
as Celloni
as Sergeant
as Willowdale Captain
as Holford
as Wing Commander
as Miguel
as Miguel's Mate
as Flag Lt.
as Lt Bailey
as Admiralty Sentry
as British Consul
as Diver
as Army Interrogation Officer
as Naval Interrogation Officer
as Navy Doctor
as Patrol Boat Officer
as Spanish Girl
as Sailor