As SAMCRO deals with the aftermath of the illegal-arms-warehouse attack, the deputy police chief poses a new threat to the motorcycle club's power in Charming. Meanwhile, Jax continues to worry about the fate of his newborn son and begins to question the club's rough way of doing business; and Opie's financial woes force him to make a difficult decision.

Club members go to Nevada to store arms with a brother club, the Devil's Tribe. And when the Mayans pose a threat to the Tribe, Clay decides on a "patch-over," making them an official SOA charter. Meanwhile, Tara's ex, an ATF agent (Jay Karnes), begins investigating SAMCRO.