Young Leon Kanter dreams of being a great violinist. His parents scrape up the money for a violin and for lessons, and Leon rewards them by becoming a great player. But as an adult, Leon finds that people want more from him than just music.

Polly Biggs helps care for her younger brother and sisters, while her widowed mother works hard as a seamstress to earn a living. Mayor Hoadley, Mrs. Biggs' brother, a crooked politician, calls to sympathize with her on the death of her husband, and Polly takes a dislike to him.

During the Franco-Prussian War, a violin teacher gets separated from his daughter. He spends years wandering across Europe looking for her.

A leader in the Russian nihilist movement has an American pretend to be her husband in order to cross the Russian border.

The Craigs and Smiths, next-door neighbors, are the best of friends until Smith builds a chicken house. Their two gardens are connected and their children fraternize as if all belonged to one large family. Sidney Craig manages to set loose Smith's chickens, who get into Craig's garden and work havoc among his pet seedlings.