Down . . . Down . . . Down . . . into enemy waters with the fightin' hellcats of the U.S. sub pack !
Captain Casey Abbott commands an American submarine in the Pacific during World War II. When a perilous mission to retrieve a new Japanese mine for study goes awry, he's forced to abandon a likable combat diver. Abbott's orders to leave a man behind appear to be justified, but his second-in-command believes he had ulterior motives:
Ronald ReaganCmdr. Casey Abbott (Captain, USS Starfish)
Nancy ReaganNurse Lt. Helen Blair
Arthur FranzLt. Cmdr. Don Landon (XO, USS Starfish)
Robert ArthurFreddy Warren
William LeslieLt. Paul PrenticeWilliam PhillipsCarroll (as William Phillips)
Harry LauterLt. (j.g.) Wes BartonMichael GarthBill aka Lt. Charlie
Joe TurkelChick (as Joseph Turkel)
Don KeeferJug
Chester W. NimitzHimself (in prologue) (uncredited)
