Having placed mines on the hull of a British warship whilst it is safe in harbour during the second World War , the two man crew of an Italian miniature submarine are captured and held prisoner whist the crew try and discover the nature of their mission!
Director
Roy Ward Baker
John Mills
Captain Morgan
Ettore Manni
Luigi Durand de la Penne
Roberto Risso
Emilio Bianchi
Robert Shaw
Lieutenant Field
Liam Redmond
Surgeon Commander Reilly
Dinsdale Landen
Norris
John Meillon
Bedford
Patrick Barr
Rev. Ellis
Moray Watson
Capt. Turnbull
Gordon Rollings
Payne
Laurence Naismith
Admiral
Leonardo Cortese
Italian Commander
US
GB
