A Navy lieutenant is borrowed by the British to supervise torpedo experiments after one of their scientists is killed.
Gene Kelly
as Lieutenant Bradville
John Justin
as Lieutenant Wharton
Bernard Lee
as Lofty Turner
Jeff Richards
as Butch Clelland
Sid James
as Charlie Badger
Patric Doonan
as Petty Officer Herbert
Ray Jackson
as Sprog Sims
Fredd Wayne
as Shorty Karminsky
Patrick Barr
as Lt. Cdr. Sinclair
David Orr
as Haggis Mackintosh
Peter Bathurst
as Geoff
