 Sergeant Dixie Smith has more raw recruits to turn into Marines, if he can. Among them is cocky casanova Chris Winters, son of an officer, who s just tried to "mash" Mary Carter, a major s niece. Once on base, he finds Mary s a nurse and an off-limits officer. Does this stop him? Of course not. But his attitude problem soon puts him in a position where he must redeem himself, with December 7, 1941 fast approaching.