As Season 4 begins, Clay, Jax and the other jailed SAMCRO members are released after a 14-month stretch and return to Charming—and a rude welcome from the new sheriff (Rockmond Dunbar) in town. Also new in town (and gunning for SAMCRO): Asst. U.S. Attorney Lincoln Potter (Ray McKinnon), who's probing SOA ties to Russian gunrunner Putlova (Keith Szarabajka). Meanwhile, Jax gets a warmer welcome from Tara (and their toddler), and makes a promise in return. And Opie and Lyla are getting married.