Band leader Jack Conrad is impressed by prison inmate Ray Ferrera on saxophone Conrad hires Ray to join his band and tour upon his release Ray hooks up with Jean a dancer in the show and the two become a successful dance act However when an exinmate buddy of Rays robs the tour bus Ray is suspected of wrongdoing by Jack and the others in the group After a gang of thugs hijacks the tour bus Ray tries to use his street smarts to redeem his reputation