Lieutenant Braden discovers that Sally, the woman he's been falling in love with, has actually been checking out his qualifications to be a U.S. Navy frogman. He must put his personal life behind him after being assigned to be smuggled into a Japanese-held island via submarine to photograph radio codes.

• Lakeside Productions
• Warner Bros. Pictures
• James Garner
• Edmond O'Brien
• Andra Martin
• Alan Hale Jr.
• Carleton Carpenter
• Frank Gifford
• William Leslie
• Richard Bakalyan