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.
Lieutenant "Buster" Crabb, R.N.V.R.
Leading Seaman Knowles
Third Officer Jill Masters, W.R.N.S
The Admiral
Chief Petty Officer Thorpe
Able Seaman Morgan
Able Seaman Fraser
Ordinary Seaman Thomas
Tomolino
Conchita
Forzenelli
Rosati
Fellini
Celloni
Sergeant
Willowdale Captain
Holford
Wing Commander
Miguel
Miguel's Mate
Flag Lt.
Lt Bailey
Admiralty Sentry
British Consul
Diver
Army Interrogation Officer
Naval Interrogation Officer
Navy Doctor
Patrol Boat Officer
Spanish Girl
Sailor