Sheriff Coltrane is hissier than a sack of rattlesnakes! He sets up a slot machine operation to fund his election, but a pair of two-armed-bandits - Bo and Luke - find a way to give the proceeds to charity.

What kind of music-publishing outfit would bilk daisy out of $50? Well, here's a hint, Dukesters: where there's corruption, there's Boss Hogg. And this time, the FBI is keeping an eye on the scam!

Everyone's after a sack of diamonds that had accidentally been dropped from an armed robber's vehicle driving through Hazzard, and all roads lead to the Duke farm after Bo and Luke get to them first. While the Duke boys are trying to report their find to the state police, they are bugged by the original thief (who poses as a reporter to get at the loot) and later, by a phony FBI agent hired by a greedy Boss Hogg who wants the reward money for himself.