Raylan travels to Florida to deal with the CROWE family; Boyd goes to Detroit in search of a missing shipment of drugs.

Dewey's ruthless cousin Darryl descends upon Harlan, as Raylan tries to undo a young friend's unfortunate mess, and Boyd struggles to free Ava from jail.

Raylan is king for a day in the seized mansion of a notorious mob accountant, while Boyd tries to regain his stranglehold on the Harlan heroin market.

Raylan ventures into wild country on the hunt for a missing informant, while Boyd's last living relative threatens his life and livelihood.

Raylan's secrets are at stake when a mob revenge plot descends upon Kentucky, and Boyd's recent successes are tempered by a crushing defeat.

An attack on Alison sends Raylan to Harlan in search of payback, while Boyd scrambles to arrange protection for Ava.

Boyd and the Crowes fly South for a crucial drug score, while Raylan pursues a small time grifter with big time enemies.

Raylan chases a missing Crowe, while Boyd and his new partners fight their way back across the border.

Raylan partners with a maverick DEA agent whose bad behavior feels uncomfortably familiar, while Boyd makes a hard choice to protect Ava.

Raylan and Boyd collide on the hunt for Dewey Crowe, while bad blood simmering in the Crowe family finally boils over.

A shooting close to home forces Raylan and Boyd to decide which lines they're willing to cross.

Raylan puts pressure on every criminal in town as a ploy to arrest Darryl Crowe Jr., while Boyd and Duffy enlist an unlikely ally to fight off cartel killers.

Raylan has one last shot at taking down Art's would-be assassin, while cartel killers have Boyd's back against the wall.

Raylan turns to affable but inexperienced Constable Bob for help securing a bail jumper from Tennessee.

As Raylan tangles with a dangerous family keeping a dark secret, Boyd takes on a snake-handling preacher.

Drew Thompson's widow turns up and gets Raylan in hot water with the FBI, while Boyd's strike at the snake church is met with a surprising strike back.

Raylan's hunt for his stolen money leads to a confrontation with a bareknuckle brawler; while Boyd and Ava face a decision that threatens to destroy them.

The search for Drew Thompson leads Raylan into the remote wilds of Kentucky hill country with unexpected and dangerous results.

Raylan's discovery of a severed foot sets off a race against time, while Boyd and Ava work to break into Harlan high society.

Raylan finds himself caught between a foxy grifter and an old nemesis out for revenge, while Boyd and Ava come face-to-face with the decadence of Harlan's elite.

Bodies start dropping and no one is safe as the search for Drew Thompson enters its home stretch.

Boyd discovers he still has an Ellen-May problem, while Raylan goes off-book to do some dynamite-fishing with unexpected results.

Drew Thompson slips through the fingers of Raylan, Boyd, and the Detroit mob, and sets off a breakneck race to find him.

Boyd and the gang from Detroit Mob use dirty tricks to keep Raylan and Drew Thompson alive.

The Drew Thompson case becomes a fiasco that Raylan can fix only by besting Boyd in a hunt for the unwitting woman caught in the middle.

Raylan has a last, lethal showdown with the Detroit mob, while Boyd and Ava try to keep an incriminating secret dead and buried.

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 tangles with a ruthless Harlan County crime family while hunting for a fugitive sex offender.

Raylan chases a pregnant fugitive who has fallen into the hands of human traffickers.

The hijacking of a bus full of drugs ends in murder, and Raylan pursues the likely culprit: Boyd Crowder.

When Rachel's brother-in-law makes a violent escape from a halfway house, Raylan is forced to hunt him down. Boyd entertains a dangerous offer in Harlan.

Raylan's hunt for a killer puts him on a collision course with the Bennett clan, while Boyd plots a heist with treacherous new partners.

When a terminally ill ex-con is linked to a bank heist, Art and Raylan must find him before he and his young henchmen can strike again. However, the manhunt is complicated when Winona worries that a hundred-dollar bill she took from an evidence room locker will be traced back to her after it is taken in the robbery.

Winona's blunder could put her behind bars, unless Raylan can weave his way through a federal courthouse locked down over death threats.

Raylan is assigned to protect a local coal mine executive as she tries to buy up land for the company but faces opposition from the Bennett clan.

Just as the bad blood between the Bennetts and the coal company threatens to boil over, Raylan must thwart one of Mags' sons.

Raylan and Winona's idyll is shattered by violence, as Boyd and the Bennetts struggle to rise from the ashes of chaos in Harlan.

Raylan realizes he wasn't the sole target of an attempted assassination, and confronts the unlikely culprit once and for all.

A deadly home invasion hits Raylan personally, placing him in a race with Boyd and Arlo to find the killer. Mags is forced to make decisions about her involvement in the Bennett family's criminal activities and the fate of Dickie, who has a deadly plan to absolve himself of responsibility.

The Crowder and the Bennett clans go to war over control of Harlan, a move that leaves dead and dying on both sides.

Gunslinging U.S. Marshal Raylan Givens faces off against his oldest friend in Harlan, Kentucky, a 21st Century Wild West.

Raylan hunts an escaped prisoner who is determined to reunite with his ex-wife...and his stashed fortune.

In tracking a vanished confidential informant, Raylan goes against a pair of violent ex-cons who are just dying for a showdown with "The Kentucky Cowboy."

Raylan leaves to California to follow the trails of a criminal who has evaded him twice in the past, and Raylan is determined that the third time won't be the same.

Raylan's father is arrested in the wake of a confrontation with the tenant of a house he and Raylan's stepmother own.

After an apparent suicide on an opulent Kentucky horse farm, Raylan must resist the sexy widow as he searches for the dead man's missing art.

Raylan foils an attempt on Ava's life and vows to find out who was behind it. Later, Raylan finds out that Ava may not have been the target.

When a murderous inmate takes hostages, Raylan must scramble to defuse the situation before the bullets start flying.

Raylan has a few drinks and gets himself beaten up, after being suspended as a Marshall. He pulls himself together and decides to jeopardise his career further by going after the thugs who have been harassing his ex-wife's new husband.

Determined to repair the damage he's done, Raylan takes time away from his assignment bodyguarding an eccentric judge to track down an old lead.

When Boyd Crowder and his crusaders become vigilantes, Raylan takes it upon himself to try to shut them down.

In order to work for the Marshal's Office, Raylan's dad Arlo agrees to become a double agent and work for Bo Crowder. Meanwhile, Bo sets up a meth lab to get back in business.

In the season finale, things come to a head in Harlan when the worlds of Raylan, Boyd and Bo Crowder collide.