The arrival of a Detroit mobster in Lexington puts Raylan on a collision course with a sadistic Dixie Mafia hit man. Raylan also has another altercation with Boyd.

The murder of a fellow marshal throws Raylan together with a former female colleague, and Art leaves the office to track down another angle of the case. Meanwhile, Boyd engineers a showdown with Dickie Bennett, despite Raylan's effort to prevent it.

Raylan faces off with a tyrannical Oxy dealer, putting him on a collision course with the new head of the Dixie Mafia. Meanwhile, Boyd fights to regain part of his family's empire, but his methods could rip his crew apart.

A daring prison escape puts Raylan on the trail of two old foes. Meanwhile, Boyd confronts a traitor in his inner circle.

Raylan races to save Dewey Crowe from a gang of vicious organ harvesters. Boyd faces off with a new adversary.

As Boyd fights for control of the Harlan oxy trade, Raylan works to keep the battle from becoming an all-out war while also battling a personal issue.

Raylan's tactics put him at odds with the FBI as he intensifies his efforts to take down Quarles and the Detroit mob.

A shocking murder forces Raylan to face past mistakes. Meanwhile, Boyd goes up against Harlan's corrupt sheriff.

Raylan pursues a Dixie Mafia soldier who could be the key to nabbing Quarles; Ava protects an imperiled prostitute by any means necessary.

Raylan struggles to keep Dickie Bennett in prison while contending with an increasingly violent and unpredictable Quarles.

Raylan squares off with a pair of merciless Detroit hit men. The battle between Boyd and Quarles comes to a head.

While Raylan closes in on an ever-more-unpredictable Quarles, Boyd enters into an unlikely alliance with Dickie Bennett in a last-ditch attempt to recover Mags's fortune.

After the murder of his friend, Raylan is a man on fire as he goes after any- and everyone he holds responsible on the way to a bloody final showdown.

Raylan investigates a burglary that's uncovered a diplomatic courier's bag hidden in his imprisoned father's house, while a new preacher's ministry cuts into Boyd's drug trade.

Following the murder of an imprisoned Dixie Mafia soldier, Raylan looks for a longtime fugitive whose ID was found inside the diplomatic pouch hidden at Arlo's house. Meanwhile, Boyd suspects the St. Cyr siblings of undermining his drug business.

Raylan discovers some disturbing truths about his girlfriend Lindsey and her violent ex-husband, while Boyd looks to convince Billy and Cassie to leave Harlan.

Raylan enlists Rachel in his pursuit of Lindsey and her jealous ex-husband Randall, while Boyd looks to keep Ellen May quiet about the crimes she's witnessed.

The race to find Drew Thompson puts both Raylan and Boyd at odds with a dangerous Harlan hill country clan.

As Raylan races against time to find Cairn, Ava and Boyd's search leads them to an upscale Harlan neighborhood's underground sex party.

Boyd and Ava attend a sex party in an attempt to identify Drew Thompson, while Jody draws Raylan into a showdown.

Boyd uses the Detroit mob's contract on Drew Thompson to target his own enemies, while Raylan's search leads him to question Harlan's imprisoned former sheriff.

Obsessions collide when Raylan's search for Drew Thompson leads him to question the inmate who killed Arlo, while Colt's confession sends Boyd looking for Ellen May.

With his identity exposed, Drew Thompson goes on the run from Raylan's law enforcement dragnet and Boyd's plan to turn him over to the Detroit mob.

After capturing Drew Thompson, Raylan must find a way to get him past Boyd and the Detroit mob henchmen who've been sent to stop him.

As Boyd learns of his jealous cousin’s plan to take over the Crowder crime empire, Raylan looks to keep Drew Thompson talking by reuniting him with Ellen May.

Detroit mob leader Nicky Augustine targets Winona in order to convince Raylan to turn over Drew Thompson, while Boyd and Ava devise a ruse to dispose of Delroy's corpse.