After America enters World War I, young William "Bill" Jones tries to avoid military service by telling the draft board that he is the sole supporter of his family and is employed by businessman Roger Winthrop, his sister Helen's boss.

Lee Tracy
as Pvt. William 'Bill' Jones

Gloria Stuart
as Mary Gregg

Donald Cook
as Lt. John Gregg

Emma Dunn
as Mrs. Jones

Shirley Grey
as Helen Jones

Frank McHugh
as 'Greasy' - the Cook

Russell Gleason
as Williams

Walter Catlett
as Spivey

Berton Churchill
as Roger Winthrop

Gene O'Brien
as Bit Part (uncredited)