 Boss and Rosco set up an illegal horse betting parlor in neighboring Rapahoe County and makes a fortune swindling money from its patrons. They route the phone calls through the Duke farm, knowing that the authorities will probably investigate and file charges. But Boss doesn t count on new Rapahoe County Boss "Big" Billie Tucker wanting the money, any way she can - nor the Dukes ingenuity. The Dukes catch on that Boss knows the outcome of the races ahead of time, then rigs the odds to wipe everyone out.