Bo and Luke were replaced by their cousins Coy and Vance at the start of the fifth season because of a contract dispute and a dispute over the script-writing. The ad in TV Guide for the airing of the first episode reads "Boss unleashes his new secret weapon - a terrifying tank, The Mean Green Machine! Enos is back to pester Daisy! But Uncle Jesse's got two new Dukes - Coy and Vance - tougher than their cousins ever were!"
(#87) "The New Dukes", September 24, 1982
As the Dukes' fifth season begins, cousins Coy and Vance (Byron Cherry, Christopher Mayer) join the fold and Deputy Enos Strate returns to Hazzard after a stint in the big city. With Bo and Luke off racing on the NASCAR circuit, Boss gleefully unveils a James Bondian vehicle and a bizarre robbery scheme, unaware he'll have to contend with a new pair of Dukes.
(#88) "Dukes Strike it Rich", October 1, 1982
When Hogg sells a worthless piece of land to a newlywed couple, the Dukes turn the tables on him by sowing the ground with a few strategically placed gold nuggets.
(#89) "Lawman of the Year", October 8, 1982
Rosco becomes Mr. Nice Guy in a bid for Lawman of the Year, leaving Coy and Vance with their hands full trying to thwart a jewelry-store robbery masterminded by Hogg.
(#90) "Coy Meets Girl", October 15, 1982
The Dukes' truck gets hijacked, along with its cargo: a friend's priceless antiques - and a runaway teen-ager who went unnoticed by Coy and Vance.
(#91) "The Hazzardgate Tape", October 22, 1982
The Dukes have to save Hogg's hide from the vengeance of three other county bosses when he refuses to share the bonanza he reaped through hijacking, stolen cars and bootlegging made possible by a new state highway that bypassed their counties.
(#92) "Big Daddy", October 29, 1982
Big Daddy Hogg (Les Tremayne) puts his son on his most-wanted list until the General Lee is commandeered as a getaway car for a robbery by Big Daddy's chauffeur.
(#93) "Vance's Lady", November 5, 1982
Vance's former flame is being followed by a crooked senator's aides who'll kill to keep her from talking to a crime commission about the pol's embezzling.
(#94) "Hazzard Hustle", November 12, 1982
Boss Hogg opens a horse betting parlor and fixes it so he gets the money and the Dukes get the blame.
(#95) "Enos in Trouble", November 19, 1982
By the time Enos learns of the stolen emeralds in his footlocker, the thieves who stashed them are trying to retrieve the gems - and so is Boss Hogg, who needs funding for his fricasseed pig's feet fast-food chain.
(#96) "The Great Insurance Fraud", November 26, 1982
The Dukes are caught up in a con artist's scheme to cash in on a bogus insurance policy he bought from Boss; the con man's car, rigged for a dive into Bottomless Lake, is side-swiped by the General Lee.
(#97) "A Little Game of Pool", December 3, 1982
With the annual pool championship at hand, Boss talks Jesse into wagering the General Lee in a warm-up match Jesse can't possibly win.
(#98) "The Treasure of Soggy Marsh", December 10, 1982
Boss gladly provides diving gear to an ex-con who's armed with a map of Soggy Marsh showing the location of $500,000 in negotiable bonds.
(#99) "The Revenge of Hughie Hogg", December 17, 1982
Hughie Hogg (Jeff Altman) blackmails his uncle into switching his election support from Rosco to Hughie.
(#100) "The Return of the Mean Green Machine", January 7, 1983
Boss resurrects his Mean Green Machine to heist a gold collection, but the crook who built the armored vehicle steals it back - and holds Cooter as insurance.
(#101) "Ding, Dong, the Boss is Dead", January 21, 1983
Boss Hogg has to play dead in order to escape a pair of hired killers sent to Hazzard by a former associate.
(#102) "Coy Vs. Vance", February 4, 1983
A pair of motorcycle stuntwomen who double as highway robbers may be headed for a fall when one of them falls for Coy.
(#103) "Comrade Duke", February 11, 1983
A defector from a Russian gymnastics team seeks refuge from her pursuers with Coy and Vance.
(#104) "Witness: Jesse Duke", February 18, 1983
An injured Uncle Jesse (Denver Pyle) is given unlikely refuge in Hogg's house after witnessing a robbery by two men who are now trying to silence him. Meanwhile, his uneasy host is trying to complete a crooked deal.
(#105) "Welcome Back, Bo 'n' Luke", February 25, 1983
Bo and Luke roar into Hazzard from a triumphant tour on the NASCAR circuit, and not a moment too soon: Cooter faces eviction from his garage by Boss Hogg.
(#106) "Big Brothers, Duke", March 4, 1983
As members of a big-brothers organization for underprivileged kids, Bo and Luke take an orphan boy under the wing whose first act of gratitude is to embark on his own private crime wave.
(#107) "Farewell, Hazzard", March 11, 1983
The Dukes try to save Hazzard from destruction when Boss Hogg joins forces with an unscrupulous speculator to buy up the county to use it for mining.
(#108) "Daisy's Shotgun Wedding", March 25, 1983
Tired of her family's overprotectiveness, Daisy moves in with a friend - and is promptly kidnapped for a shotgun wedding with one of the Beaudry clan.