Buster plays Elmer "Happy" Triple, a scientist who is expected to develop the next big thing. That big thing ends up to be a powder when combined with water, produces major blasts that make no sound, which catches the eyes of three robbers who want Elmer's secret powder.

Edith Frome (Stevens) finds it impossible to live with her alcoholic husband Arthur (L ‘Estrange), and finally leaves him. After three years she returns but leaves each evening, returning late arousing the suspicion of her husband. Having her followed he soon learns that she visits a child. Suspecting the worst because of her friendship with Dr. David Brett (Phillips), he institutes divorce proceedings. Edith confesses the truth about the child and Arthur, realizing his folly, swears off liquor and they are reunited.

As he lies dying, Count Florian Zuleski of Poland, the head of a committee working for perpetual peace among European nations, entrusts his daughter, Mayra, with the dangerous mission of delivering some important documents to New York. Arriving in the United States, Mayra is unable to establish contact with the Polish representative and goes to live with her aunt. She soon meets Brian Kelly, who is working as a traffic cop after being disinherited by his irate millionaire father for not entering into a marriage of convenience with patrician Janet Van Wyck.