Itu Prohibisi-era Chicago, lan bos mow Al Capone (Robert De Niro) nggolèk agen Federal Agen Eliot Ness (Kevin Costner), ikrar kanggo ngajak dhèwèké. Seon Connery maksudke kelakon sing dimaksud: Seasoned Cop Jimmy Maloy (Sean Connery), boss mlebu-mriti George Stone (Robert De Niro), lan bukir Accountant Oscar Wallace (Charles Martin Smith).