Season four opens with SAMCRO leaving the penitentiary after a 14-month incarceration and is met with a show of power from the new sheriff of Charming, Lieutenant Eli Roosevelt. Opie remarries and SAMCRO is back to their old ways without hesitation by using Opie’s wedding to mask the gathering of their Russians “counterparts.” After separating from the wedding in a secluded part of the woods, the Sons murder a few Russian gang members as retaliation for the attacks in prison. After this violent event SAMCRO decides to become involved with the Galindo cartel, eventually it is revealed to Jax that the leaders of the cartel are CIA agents but does not reveal this information to the rest of the club. Clay asks the cartel to help deal with Tara, claiming she is a threat to the work at play and needs to be taken out immediately.
This point of the series the viewer is lead to despise Clay for the actions he is taking against those surrounding his own stepson, you begin to side with Jax on multiple accounts of conflict within the Sons of Anarchy. Otto, a SOA member in jail, is approached by CIA agents looking for a deal to break the Sons of Anarchy. At the end of this season you begin to realize similarities between Jax, Tara and Gemma and Clay, you begin to see the transformation Jax continues to evolve into. Opie had shot Clay in the chest multiple times and Jax inherits the Presidents role of SAMCRO. Finally Jax gains the leadership of SOA to allow him to follow through with his plan to remove himself from the club to make a better life for himself and his family but he soon realizes that he must remain in the club for now to prevent it from falling apart completely.