When a daughter of a Charming family is assaulted during a carnival, SAMCRO seeks justice and races against authorities to capture the assailant.

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

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.

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).

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

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.

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

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

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.

Jax learns new secrets that turn his world sideways.