With the club divided in the wake of Donna's death, Clay sets up a new gun deal with the IRA. Meanwhile, a white separatist group takes root in Charming and threatens more than just Samcro's control over Charming. The L.O.A.N gang kidnaps and rapes Gemma and tells her to stop Samcro from selling guns to blacks and other non-white gangs.
Following a traumatic event, Gemma finds herself unable to tell either Clay or Jax about it. Meanwhile, a rival porn producer (Tom Arnold) moves to put Luanne out of business; and Clay takes exception to Jax's hasty decision making.
Zobelle (Adam Arkin) cooks up a "temporary problem" for Hale to solve as a way to undermine Samcro; Gemma's rape is undermining her relationship with Clay; and Jax's involvement in Luanne's porn business is getting to Tara. Meanwhile, Clay tells Bobby, who needs a job, to run the business end of Luanne's business.
Tensions between Jax and Clay escalate when they disagree over strategy for rescuing Tig after he's captured by bounty hunters on a gun-running mission. Back in Charming, Gemma is rattled by a graphic reminder of her attack, and she sets out to do something about it.
Since The League has SAMCRO members behind bars, the club must make new alliances in prison to survive. Alcohol, Tobacco and Firearms Agent Stahl uses this imprisonment to test Clay and Jax's relationship.
Zobelle's business dealings with SAMCRO rivals exacerbate divisions in the club, which is already riven by the Jax-Clay split. And complicating matters further, Georgie Caruso's thugs attack Luanne's studio. Meanwhile, Clay comes to an agreement with Elliott Oswald; and Chibs' estranged wife shows up at his hospital bedside.
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.
The entire SAMCRO family goes on lockdown inside the clubhouse as Jax and Clay prepare to battle The League. A.J. Weston learns the truth about Ethan Zobelle's business dealings in Charming. Applying what she has learned from Gemma, Tara ensures her position at St. Thomas Hospital.