When Scheana and Katie bust Lala for lying about a modeling job in Italy, Lisa Vanderpump turns the table on them for picking on the new girl. Scheana worries her marriage may be in danger when it's revealed that her husband has been keeping secrets. Tom and Ariana try "adulting," Jax and James compete for Lala's affection and Tom Schwartz makes a big step towards committing to Katie.

Convinced that Kristen is cheating on him, James seeks revenge by hooking up with Lala. Katie and Ariana urge Scheana not to sweep marital problems under the rug, and a jealous Jax recruits Kristen in his scheme to pull Lala away from James.