Jax's loyalty to SAMCRO is tested when one member is arrested and another disappears. Meanwhile, Abel's improving condition could spur his release from the NICU, but his homecoming may not be the only one.

Clay's solution to getting cash for Bobby's defense leaves SAMCRO in a vulnerable position; Abel's happy homecoming ends in turmoil for the club.

In the wake of a tragedy, the club must re-evaluate its bonds of brotherhood.

Donna's death has the club divided, with Clay setting up a new gun deal with the IRA. Charming and SAMCRO 's hold on the city is threatened after Ethan Zobelle a sophisticated separatist opens a tobacco shop. Zobelle and his less-sophisticated associate are determined to take SAMCRO down due to their black and Latino bikers.

Zoebelle incites Clay, who plans a course of retaliation, causing Jax to look to an unlikely source to keep the club from being destroyed. Tara learns from Gemma how an old lady handles anger.

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 Jax and Clay's relationship.

While Opie seeks both revenge and reconciliation, Chibs makes a secret deal with Agent Stahl (Ally Walker) to protect his wife and daughter.

Jax and Clay keep SAMCRO focused on their impending showdown with Zobelle's group; thanks to Gemma, Tara improves her job security at the hospital; Weston finally discovers his boss's intentions in Charming.