After carrier pilot Lt Bingham is rescued at sea by a submarine when he crashes, he applies for submarine duty. During training he competes with Commander Heywood for the affection of Navy nurse Lt Susan Peabody. Heywood gets a new sub command at the outbreak of the Korean war and Bingham is assigned to his sub.
Mark Stevens
as Bob Bingham
Dorothy Malone
as Susan Peabody
Bill Williams
as Tom Graham
Charles Winninger
as Oliver J. Peabody
Douglas Kennedy
as Lt. Dore Gates
James Millican
as Cmdr. Heywood
William Henry
as Instructor
James Seay
as Skipper
Carleton Young
as Psychiatrist
Ralph Sanford
as Charles Hedley
Charles Bronson
as Submariner