Brett insults Scheana while interviewing her for his YouTube channel, while Katie hosts a girls' night complete with wine, cheese, and a guest list that doesn't include Kristen. Raquel stands up for her boyfriend James when Lala questions his sobriety, and Lisa travels home to England to attend her mother's funeral. Finally, Tom Sandoval and Max toilet paper Jax's house in honor of his 40th birthday, but their actions spark the beginning of an epic prank battle that threatens to derail Schwartz and Katie's relationship.

The group travels to Las Vegas to celebrate Schwartz and Katie's second wedding, but leave a heartbroken Kristen behind. Lisa shows off the Vanderpump Cocktail Garden, Beau calls Stassi's father to ask permission to propose, Schwartz finds a bra in his bag that doesn't belong to Katie, and Max sets his sights on a cocktail waitress who looks eerily similar to Scheana. Meanwhile, back in Los Angeles, Dayna and Brett grow closer during a double date with James and Raquel.