As the club deals with the aftermath of their illegal arms warehouse attack, the Deputy Chief of Police poses a new threat to Samcro's reign over Charming. Jax continues to worry about the fate of his newborn son and begins to question the club's rough way of doing business. Opie's financial struggles leave him with a difficult choice.
The BAU investigates a series of murders in Modesto that appear to be connected to a killer who jumps trains in Northern California and chooses his victims based on their proximity to the railway.
SAMCRO plans retaliation on a rival biker club while dealing with a wounded Cameron Hayes in the clubhouse. Meanwhile, Jax, Bobby, and Opie aim to put an end to the gun debt for good.
As SAMCRO attempts to rid Charming of Ethan Zobelle and The League permanently, familiar faces present new challenges.
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.
