A rival gang steals the Sons' stockpile of assault rifles, while Jax's ex-wife's drug overdose leads to an emergency c-section and life-threatening surgery for their baby.

The club deals with the aftermath of their firearms warehouse attack as a new Deputy Chief of Police poses a new threat to SAMCRO.

Gemma hosts a fundraiser, bringing back a familiar but not welcome face who has history with SAMCRO.

With Clay in custody Jax has to step up as Piney's old friend turns out to be a problem for the MC.

SOA plans revenge on a rival biker club while hosting the wounded Cameron Hayes in the clubhouse. Meanwhile, Jax, Bobby, and Opie strive to clear the gun debt forever.

As ATF agent Stahl pressures the women of SAMCRO, Jax looks to Chief Unser as the key to the club's freedom. Tara can't escape nightmares about Kohn. And Cherry reveals secrets about her past to Gemma.

One SOA member is arrested for murder. Another goes missing. Jax has to choose between the club and one of his closest friendships. At the hospital, Abel grows stronger, but he's not the only one coming home.

The club needs cash to fund Bobby's defense, but Clay's strategy leaves them in a vulnerable position. Abel comes home for the first time. But the homecoming party ends in tragedy.

After a tragedy hits the club, the bonds of brotherhood are called into question and Jax must take a stand.

With the club divided in the wake of a tragic death, Clay sets up a new gun deal with the IRA.

Jax's decision without the club's approval doesn't sit well with Clay, especially when it brings dangerous repercussions upon the MC.

The League takes bold new steps in their quest to undermine Samcro, forcing the club to take explosive measures.

When the MC heads north on a "charity" club run, they find more than just bike trouble when they cross state lines. And with Samcro out of Charming, Gemma's left in a compromising position with The League.

Charming and its small-town appeal become vulnerable to The League, which finds new ways to provoke SOA members. Tara's compassionate efforts to help a distraught Gemma don't go unpunished.

Clay sets a course for retaliation; Gemma shows Tara how an old lady handles anger.

The club must make new alliances in prison to survive.

When Oswald puts up the bail money, SAMCRO are released from prison, but the split between Clay and Jax is wider than ever. Complicating matters, Caruso's thugs attack Luann's studio. In an effort to heal the tensions between her husband and son, Gemma organises a meal. Clay comes to an agreement with Oswald when he learns Jacob is planning to run for mayor. Chibs's estranged wife Fiona Larkin (Bellina Logan) shows up at his hospital bedside, much to Gemma's chagrin. Lin has a proposal for SAMCRO, who are surprised to learn Marstein is still alive. Given the accounting job at Luann's studio, he informs SAMCRO that the Triad and the 9ers have been losing territory to the Mayans. When Jax, Bobby, and Opie go to see Laroy to ask him about it, they get something unexpected. Meanwhile, Weston is not entirely happy with Zobelle's latest decision, Gemma's efforts to help Tara backfire, Opie begins to get close to one of Luann's girls, Lyla Dvorak (Winter Ave Zoli), and Edmond begins a relationship with Zobelle's daughter Polly (Sarah Jones).

When SAMCRO's adult film business becomes a hindrance to the club, Clay seizes the opportunity to revive the gun-running cartel. As Jax and Clay continue to clash over club activities, their relationship reaches a new level of antagonism.

While the repo business proves more fruitful than the club ever imagined, ATF Agent Stahl gets up close and personal with the MC. Meanwhile, tension between Jax and Clay forces Gemma to make a tough decision.

Chibs makes a secret deal with Agent Stahl in order to protect his wife and daughter. Opie learns the true circumstances that led to Donna's death and seeks both revenge and reconciliation.

The entire SAMCRO family goes on lockdown inside the clubhouse as war with the League approaches. Opie decides not to pursue revenge against Clay or Tig for Donna's death. Jimmy puts an end to Cameron's deal with Zobelle, agreeing instead to sell exclusively to SAMCRO. As Chibs backs out of the deal with Stahl and attempts to convince Fiona to let him protect her, Clay tells Jimmy that Edmond has flipped. After Jax witnesses Zobelle meeting Álvarez, SAMCRO inform Weston of the real nature of Zobelle's business dealings. Tara applies the lessons she has learned from Gemma to assert her position at St. Thomas. SAMCRO approach Laroy and Lin about uniting against their common enemies; the League and the Mayans. Edmond re-negotiates his deal with Stahl, seeking immunity for himself and Cameron. Hale makes a decision about what kind of chief he wants to be.

As SAMCRO attempts to rid Charming of Ethan Zobelle and The League permanently, familiar faces present new challenges.

The aftermath of Abel's kidnapping has the Sons reeling - especially Jax, whose grief sends him into deeper turmoil over his future with the MC. Meanwhile Gemma, still on the lam, is hit with some unexpected news from her past.

To get intel on Abel's whereabouts, Jax and the club help a bounty hunter track down a skip. Meanwhile, Gemma deals with family issues.

The club exploits its porn connections to entertain Henry Lin's clients, which doesn't sit well with one member.

Samcro heads north to help Happy with a pharmaceutical favor in redneck territory. Gemma tries to put old family matters to rest.

To help his mom, his club, and his son, Jax conspires with an unlikely source; meanwhile, the MC puts Chucky undercover.

To protect their territory, Sons of Anarchy must handle a rat at St. Thomas.

The Grim Bastards have a problem that could jeopardize Samcro's new business arrangements.

When Samcro pays a visit to another charter, not everyone's happy to see the mother chapter.

SAMCRO tries to get answers from Jimmy, but finds themselves in an explosive situation; and Unser looks into the attack at the gym while Tig and the others search for answers on their own.

The IRA wants proof that one of their own has flipped and Samcro intends to give it to them.

While the club's on a man hunt, Jax faces the toughest decision of his life.

With a member of the Samcro family held hostage, Jax must choose between revenge or the good of Charming.

Both the ATF and the Russians prove to be obstacles as the club looks to heal old wounds and settle old scores.

Fresh out of jail, SAMCRO reunites with family, confronts new Charming law enforcement, and shifts business alliances.

The Sons of Anarchy are forced to make a decision that could challenge the future of the club.

SAMCRO encounters an unlikely foe when a piece of their business goes missing.

SAMCRO makes a run to set up a new business venture while Gemma makes a new ally in Charming.

SAMCRO enlists a former foe to help stop the advancement of Charming Heights, while the Sheriff presses Juice for more information.

SAMCRO's relationship with the Cartel is in jeopardy when an important package is compromised.

SAMCRO deals with the fallout from a death threat made against Tara.

An important club vote gets side tracked when SAMCRO is forced to deal with dangerous external threats against the club.

SAMCRO gets word that the Niners have made a new alliance that directly impacts their own agenda.

Jax and Tara get a glimpse of life without SAMCRO but discover that their reality is hard to escape.

SAMCRO is at risk of being pushed out of their own business when a powerful adversary arrives and poses a threat to their business relations with the Cartel.

SAMCRO negotiates with the Irish Kings to secure the future of the club.

Jax is confronted with a new challenge that threatens his family and his club.

Jax must overcome great obstacles as he attempts to finalize the gun deal between the Irish and the cartel.

An important club vote gets side tracked when SAMCRO is forced to deal with dangerous external threats against the club.

SAMCRO makes a run to set up a new business venture while Gemma makes a new ally in Charming.

When the MC heads north on a "charity" club run, they find more than just bike trouble when they cross state lines. And with Samcro out of Charming, Gemma's left in a compromising position with The League.

Chibs makes a secret deal with Agent Stahl in order to protect his wife and daughter. Opie learns the true circumstances that led to Donna's death and seeks both revenge and reconciliation.

SAMCRO encounters an unlikely foe when a piece of their business goes missing.

SAMCRO enlists a former foe to help stop the advancement of Charming Heights, while the Sheriff presses Juice for more information.

SAMCRO's relationship with the Cartel is in jeopardy when an important package is compromised.

Samcro heads north to help Happy with a pharmaceutical favor in redneck territory. Gemma tries to put old family matters to rest.

After a tragedy hits the club, the bonds of brotherhood are called into question and Jax must take a stand.

SAMCRO gets word that the Niners have made a new alliance that directly impacts their own agenda.