The cast of Southern Charm rehashes the tumultuous season in the first episode of the two-part reunion. #NewCraig is put in the hot seat, Cameran gets called out for being a mean girl and Shep recounts a surprise prison stint. And as Thomas and Kathryn's touchy relationship continues to be in the news thanks to new allegations, it's the simmering resentment between Landon and Kathryn that forces one cast member to walk off set.