Following World War I, Lloyd Hart starts his law practice, George Hally, a former saloon keeper, becomes a bootlegger, and Eddie Bartlett, a garage mechanic, finds his old job filled. At the suggestion of his friend Danny Green, Eddie becomes a cab driver. While unknowingly delivering a package of liquor to Panama Smith, he is arrested. Panama is acquitted and after a short stint in jail, they go into the bootlegging business together. Eddie uses a fleet of cabs to deliver his liquor, and he hires Lloyd as his lawyer to handle his legal issues. He re-meets Jean Sherman, a girl he formerly corresponded with during the war while she was in high school, who is now an adult working at a nightclub. Eddie gives her a job singing in Henderson's cabaret, where Panama is hostess. Eddie wants Jean as his wife, giving her an engagement ring that he asks her to hold until he's saved up enough money to quit the criminal rackets.