Scheana goes out with a hot young model in an attempt to make Adam jealous, while James accuses Lala of being insincere in her attempt to save their friendship. Ariana vows to confront Lisa Vanderpump when she hears she has been criticizing Tom Sandoval's work ethic. When Brittany's big Kentucky family descends on West Hollywood in preparation for the engagement party, Jax puts his foot in his mouth during a tense conversation with her father.