Jim and Walter are two brother sailors in the United States Navy. Walter tells Jim as soon as they get home he is going to ask his beautiful girlfriend, Nancy Larkin to marry him. But Jim is also in love with Nancy so he begs Nancy's ugly duckling sister, Letty to help break Walter and Nancy up. Letty agrees only under one condition, he help her to win Walter!
Martha Raye
as Letty Larkin
Bob Hope
as Jim Brewster
Betty Grable
as Nancy Larkin
Jack Whiting
as Walter Brewster
Clarence Kolb
as Captain Tallant
J. C. Nugent
as Mr. Larkin
Bonnie Jean Churchill
as Ethel May Brewster
Nana Bryant
as Mrs. Brewster
John Henry Allen
as Messenger Boy (uncredited)
Irving Bacon
as The Druggist (uncredited)