For those who are not in the know, S.O.A stands for Sons of Anarchy on the FX Channel. The end of Season 3 found Jax (Charlie Hunnam), Clay (Ron Perlman) and several other club members heading to prison to serve their plea deal sentence. A lot can change in 14 months. And for the members of the motorcycle club, he time that has passed between seasons may spell the end of SAMCRO forever. “Jax has had a lot of time to think about the last three years of his life,” said creator and executive producer Kurt Sutter . Minor Spoilers ahead.