During WWII, Duke E. Gifford is second in command of the USS Thunderfish, a submarine which is firing off torpedoes that either explode too early or never explode at all. It's a dilemma that he'll eventually take up personally. Even more personal is his quest to win back his ex-wife, a nurse; but he'll have to win her back from a navy flier who also happens to be his commander's little brother.
John Wayne
as Duke E. Gifford
Patricia Neal
as Mary Stuart
Ward Bond
as John "Pop" Perry
Scott Forbes
as Larry
Philip Carey
as Bob Perry
Paul Picerni
as Jonesy
William Campbell
as Talker
Kathryn Givney
as Steele
Martin Milner
as Caldwell
Sam Edwards
as Junior
Jack Pennick
as Chief
Virginia Brissac
as Sister Anna
