The club travels to Nevada to store arms with a brother club; when the Mayans pose a threat, Clay decides to "patch-over" the tribe, making them an official charter; Tara's ex, an ATF agent, investigates SAMCRO.

A small favor for Piney's old war buddy turns into a big problem for SAMCRO; Gemma deals with the effects of aging.

When old bones are discovered on the outskirts of Charming, Clay must deal with long-buried secrets; the club sets its sights on prize money in a bare-knuckle brawl; Kohn's investigation becomes personal when his true intentions are revealed.

With Stahl pressing the women of SAMCRO, Jax sees Unser as the key to salvation; Cherry reveals interesting information about her past.

To secure weapons and raise money for Abel’s search, the club exploits its porn connections to entertain Henry Lin’s clients, which doesn’t sit well with Opie (Ryan Hurst). Jax’s decision to search for Abel in Canada gets derailed. When Gemma’s dad goes MIA, her prisoner makes plans to do the same.

Jax and Clay head towards Canada after Jimmy provides misleading intel on Abel’s whereabouts. The rest of the club splits off to help Happy with a pharmaceutical favor in redneck territory. Gemma tries to put old family matters to rest.

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