An optimistic guy is arrested and thrown in jail, while there he learns the saxophone from a fellow inmate. Once he's released from jail, he and a few friends form a swing band while he tries to win back his girlfriend who married the police officer who arrested him!—Michael G. Moen
When Martin gets out of prison, the guards warn him to get a job or end up back in jail. Martin decides to start his own band. The band is a smashing success until the police find out that it was backed with stolen money.