An old widow sells the Dukes a "worthless" vase for $25. A man comes to the widow after the Dukes leave, looking for the vase which turns out to be of some very good value!

Bo and Luke have left Hazzard to full fill a life long dream of racing on the NASCAR Circuit. Boss is so happy about it, that he unleashes his ultimate secret weapon: The mean green machine, monstrous vehicle to rip off the bank in Capitol City, and plan to steal $100 engraving plates from an armored truck that's suppose to pass through Hazzard county. But he's unaware that cousins Coy and Vance Duke have returned to Hazzard after 6 years to help uncle Jesse run the farm and are on to his shenanigans, and driving around in the General Lee. Also, Enos returned to Hazzard and is back on the force.

With a lot of UFO sightings in Hazzard, Bo and Luke are starting to think that people are crazy until an alien from outer space hides in the General Lee and comes back to the Duke farm with them. However, when Boss finds out about this, he wants to take it and sell it.

Coy falls for a shady motorcycle stunt driving woman who turns out to be one of the crooked cops hijackers that has been robbing people. When Vance finds this out, a fight between Coy and Vance has Coy leaving the farm.

The Russians' gymnast team comes to Hazzard and a defector named Natasha escapes and hides out at the Duke farm while Boss helps the Russian gymnast leader find her.

Boss hired two crooks to rob the jewelry store and Coy and Vance are very suspicious about them and go and investigate while being chased by Cletus and Enos. But when Boss sends Rosco to arrest Coy and Vance, he refuses because he wants to be good so that he will be elected "Lawman of the Year".

While delivering a shipment of antiques to some friends, Coy and Vance are hijacked by a couple of Boss' henchmen. But they didn't known that a runaway orphan was stowaway in the back of the truck and saw the whole thing. She ends up going back to the farm and has crush on Coy, which slows down the Dukes looking for the hijackers.

Boss double-crosses the Bosses of a few neighboring counties and their out to get him. The Dukes let him hold up on the farm until Vance plans to expose them by tape-recording their scheme. Mel Tillis performs at the Boar's Nest.

Boss tries to use the mean green machine again but it gets stolen by the original crook who try and rob the Hazzard Emporium for all the gold. But when it breaks down, they kidnap Cooter to fix it and hold for insurance.

When Jonas Jones, a good friend of Cooter's, is framed for hijacking, Cooter takes the rap for him but the Dukes dig into this and track down Jonas to find the real hijackers.

Vance's old girlfriend comes to Hazzard to see him but is chased by crooked politician's associates who are trying to kill her after she witnessed the Senator's embezzling. . But The Duke try and convince her to go report it to Senate Crime Commission.

Boss Hogg swindles newlyweds Jeb and Carrie Morton into buying a worthless piece of land next to the Duke Farm. So the Dukes try and help them by scamming Boss by making it look like they've found gold on their property and the Morton's property and struck it rich so that Boss will buy back the land.

Boss frames Coy and Vance by putting a hot license plate on the General Lee. But Boss calls off the chase when he is told that his daddy is coming to Hazzard who is supposedly a Good Samaritan - but his driver robs them.

Boss opens up an illegal horse-betting saloon in Rapahoe County and uses the Dukes' phone line to frame them. But the Boss of Rapahoe County is not happy being cheated out of her county's money.

A pair of crooks is after Enos' footlocker that he and the Dukes picked up at the bus depot from California that contains a handful of emeralds - unbeknownst to Enos.

Boss Hogg is trying to get his hands on the General Lee to sell to two crooks that need it. But when they try and steal it, they get caught. So Boss challenges Jesse to a game of pool - Ridge runner style - and wagers the General Lee. Even though Jesse's a better pool player, Boss has some dirty tricks up his sleeve.

When Rosco is up for re-election, Boss has no trouble supporting him until his devious nephew Hughie Hogg returns to run for sheriff and blackmails his uncle into helping him by showing evidence of a crooked deal he made.

A couple of thieves bring an advanced robot - that they stole for a ransom - through Hazzard County and Boss decides to buy it off them, fires Rosco, and make it the new sheriff: Robot P. Coltrane.

Boss Hogg finds a piece of paper from his great grandfather Thaddeus that Jesse's great grandfather Jeremiah signed over the Duke farm. Confused as ever, The Dukes find their great grandma's diary and they tell the story about the events leading up to it from the 1800's.

Bo and Luke are unaware that 1) the borrowed car they're driving is loaded with moonshine and 2) the pregnant hitchhiker they've picked up is carrying over $100,000 in stolen mob money.

Boss has Coy, Vance and Daisy framed and sends them to Chickasaw County where they are arrested by Sheriff Little so that he can go ahead with his master plan and hires two crooks to scuba-dive down to Soggy Marsh and unburry 5 million in stolen bonds.

Leave it to Cooter to drive everyone wild. When government agents driving the U.S. President's limo through Hazzard stop at the Boar's Nest, Cooter hot-wires the vehicle and sets out on a joy ride.

Uncle Jesse's cousins, the Comfurt family, sell their farm for $250,000. The Comfurts rent a Rolls-Royce that breaks down and Cooter lends them a car while he fixes it. The loaner car is stolen from outside Cooter's garage with proceeds from the farm's sale locked in the trunk. The Dukes track down the car as it changes hands--from the car thieves to a used car dealer to a bank robber.

In the series' only Christmas-themed episode; Boss, who is in an Ebenezer Scrooge-like mood throughout this episode, hires a trio of criminals to hijack the Dukes' Christmas tree shipment, then pin the blame on the Dukes. The scheme involves two of the bad guys stealing the trees from Bo and Luke at gunpoint, then the third associate disguised as a clergyman giving the Duke boys a lift into town, and then telling them they forgot "their" $500 down payment on the trees. While Uncle Jesse and Daisy set out to clear their family's name, the criminals plot to double-cross Boss by taking more than their payment due on the trees, breaking into the safe while each one is dressed as Santa Claus. Meanwhile, Bo and Luke, with some help from Cooter, decide to take back the trees and have a little fun confusing Rosco and Cletus while delivering the trees dressed as Santa Clauses. In the end, the episode takes a turn toward forgiveness and fellowship as the Dukes and Cooter invite Rosco and Cletus to their Christmas Eve gathering. Boss comes in later, reformed after having read Charles Dickens' "A Christmas Carol."

Boss Hogg's rival uses a good-looking stranger to come into Hazzard and bomb the Boar's Nest. Daisy falls for the stranger, and is soon kidnapped by him.