The new commander of a Navy Underwater Demolition Team--nicknamed "Frogmen"--must earn the respect of the men in his unit, who are still grieving over the death of their former commander and resentful of the new one.
Richard Widmark
as Lt. Cmdr. John Lawrence
Robert Wagner
as Lt. (jg) Franklin
Dana Andrews
as Jake Flannigan
Gary Merrill
as Lt. Cmdr. Pete Vincent
Jeffrey Hunter
as Pappy Creighton
Warren Stevens
as Hodges
Harvey Lembeck
as Marvin W. 'Canarsie' Mikowsky
Robert Rockwell
as Lt. Bill Doyle
Henry Slate
as Sleepy
Robert Adler
as Chief Ryan
Parley Baer
as Dr. Ullman
William Bishop
as Ferrino
