Lisa Vanderpump brings new blood into SUR's shark-infested waters; Kristen must decide whom to believe after hearing that James has been unfaithful; Jax brings in a new girlfriend; Scheana feels the heat over her friendship with Kristen.
Scheana and Katie bust new employee Lala for lying about a modeling job in Italy; Jax and James compete for Lala's attentions; Scheana discovers her husband has been keeping secrets; Tom Schwartz takes a big step in the direction of commitment.
The crew forces Scheana to reassess her marriage in light of Shay's secret life; Jax lobbies to get his new flame a job at SUR; Kristen and James seek couples therapy; Tom Schwartz and Tom Sandoval pitch a business plan to Lisa.
Convinced Kristen is cheating on him, James hooks up with Lala; Lisa teaches her staff about fine wine; Jax schemes to attract Lala away from James and recruits Kristen to help him.
Lisa Vanderpump holds Stassi at arm's length; Scheana and Ariana realize their friendship is damaged; James schemes to get an invitation to Hawaii with the others; Katie shows off her engagement ring at SUR; Faith and Lala go skinny-dipping.