Stassi and Ariana throw an epic winter-themed birthday party; Stassi's new boyfriend gets his first taste of Stassi's bad birthday behavior; Jax confronts Tom Sandoval for questioning his engagement; with fun facts and insider information.
Stassi struggles to make amends with Beau after her meltdown; James tries to rekindle his friendship with Lala; Jax causes trouble at a SUR staff meeting; Katie, Kristen and Stassi's mothers come to town; with fun facts and insider information.
Katie convinces Lisa to let her host a "Girls' Night In" party, but Billie Lee lashes out at Katie for not including her in the planning; Brittany throws a tantrum; Lala decides James is moving too fast; with fun facts and insider information.
The group treks to Marina del Rey for Scheana's housewarming; Lala calls out Billie Lee; Tom gossips about Ariana's romantic encounters with women; Lisa Vanderpump finally reveals the fully finished TomTom; with fun facts and insider information.
Sandoval and Schwartz scramble to get TomTom ready for its opening event; Kristen learns she's not allowed to come; James erupts; Jax celebrates his birthday without the support of his parents; with fun facts and insights from producers and stars.
Lala takes her friends to Solvang, Calif., on a private jet; Brittany brings Jax to therapy to deal with his infidelities; James has a fight with his mother over money; with fun facts and insights from the producers and stars.
Kristen's bizarre behavior threatens to spoil the women's trip to wine country; Scheana breaks down; Tom Sandoval invites women back to the hotel room; with fun facts and insights from the producers and stars.
Stassi gives Kristen tough love about her relationship with Carter; Sandoval and Schwartz worry that Lisa may not put their cocktails on the menu; Lala is betrayed by her boyfriend; with fun facts and insights from the producers and stars.