In the Season 3 premiere, Lisa Vanderpump still rules over everything at SUR, but no longer rules over Stassi, who returns from New York to find everything has changed between her and her former friends. Meanwhile, Jax prepares for plastic surgery, Scheana plans her perfect birthday party, and Tom Sandoval sparks a romance with Ariana, but all happiness is jeopardized when Kristen digs up a secret that will rock everyone.