A young couple struggling against poverty must keep their marriage a secret in order for the husband to keep his job, as his boss doesn't like to hire married men.

Ramona, residing on her wealthy Spanish adoptive mother's rancho in California, falls in love with the Indian Alessandro. When Ramona is denied permission to marry Alessandro, the lovers elope, only to find a life of great hardship and unhappiness amidst the greed and injustice of the white landowners.

A scientist discovers a formula that makes a baseball which is repelled by wood. He promptly sets out to exploit his discovery.

Roger Hudson, a wealthy businessman who has moved to Washington to work for the government as a "dollar a year man," is late for a radio broadcast about his new department, the Mobilization of Woman Power for War. He takes a cab driven by Dixie Dugan, who hopes that being a cabbie while the country's men are away fighting will help the war effort. Her incompetent driving, however, results in an accident for which Roger must take responsibility in order to reach the radio station in time. Dixie then returns home, where she lives with her father Timothy, who is constantly practicing his air raid warden duties, her mother Gladys, an aspiring Red Cross worker, and cousin Imogene, who studies incessantly to become a "quiz kid." The Dugans rent out their spare rooms to Dixie's fiancé, Matt Hogan, and to blustering Judge J. J. Lawson. Matt, who works in a munitions factory, wants Dixie to settle down and marry him, but Dixie is determined to help her country.

Behold in this film the Uplifter, a peculiarity of the human species, quite convinced that all that is, is wrong. Forth to the uplift he minds everybody's business but his own, until that business is as clean, pure and spotless as himself. Verily in these later days is there no school of art named, "Minding One's Business."