In Brooklyn, fishing is the hobby of the workers Jonah Goodwin and Olaf Johnson and they use to fish every night in their old boat. Jonah's daughter is the twenty-one year-old telephone operator Stella Goodwin, who is an ambitious young woman that dreams on leaving her neighborhood. She is the sweetheart of the worker George Watkins, a simple man that dreams on marrying her. When the smalltime gangster Harold Goff arrives in Brooklyn, he extorts money from Jonah and Olaf to "protect" their boat from fire and dates Stella. Jonah tries to convince his daughter that Goff is a racketeer that takes money out of poor ordinary people but she does not care to her father since she sees Goff as her chance to have a comfortable life and visit new places. When she discloses to Goff that her father has savings, Goff demands the money to Jonah. Now the old man is convinced that the only chance to get rid off Goff is to fight back.

Joe and Paul Fabrini are Wildcat, or independent, truck drivers who have their own small one-truck business. The Fabrini boys constantly battle distributors, rivals and loan collectors, while trying to make a success of their transport company.

After World War I, Armistice Lloyd Hart goes back to practice law, former saloon keeper George Hally turns to bootlegging, and out-of-work Eddie Bartlett becomes a cab driver. Eddie builds a fleet of cabs through delivery of bootleg liquor and hires Lloyd as his lawyer. George becomes Eddie's partner and the rackets flourish until love and rivalry interfere.