Summary: Ariana puts on a brave face and attempts to rebuild her life after Tom's infidelity; Tom Schwartz tries to make peace with his friends; James settles into his new life with Ally; Scheana opens up about her diagnosis; Lala confides in Lisa Vanderpump.

Summary: Tom Sandoval returns to Los Angeles just in time for his birthday. His plans hit a snag, however, when Ariana learns he wants to throw a party in their shared home. Scheana attempts to reinvigorate her music career, but must first work through her anxiety about leaving Summer Moon with a nanny. Schwartz confronts Sandoval for abandoning him to deal with their business alone.

Summary: Schwartz hatches a scheme to bring the gang back together; Ariana sets firm boundaries with everyone regarding her ex-boyfriend; Katie and Scheana make a promise to prioritize their friendship: a shocking admission shakes Lisa Vanderpump to the core.

Summary: James and Ally throw their first pool party in their new house; Lisa Vanderpump gives Scheana and Lala advice on how to handle a broken friendship; Schwartz gets a haircut from his not-girlfriend, Jo; a face from the past makes an unexpected return.

Summary: James surprises Ally with a new addition to the family; Scheana and Brock clash over hiring a nanny for Summer Moon; a tense conversation between James and Sandoval threatens to rock the fragile peace the group had just formed.

Summary: Sandoval attempts to reconnect with Scheana during a meditation exercise; Brock accuses a friend of spreading a rumor about his marriage; James and Ally announce their new family member to the world; Ariana and Katie embrace their inner bosses.

Summary: The group begins to mend their friendships; Lala expresses her desire to become a mother again; Scheana cries to Lisa about her insecurities with Ariana; Sandoval is forced to recognize he may never get closure with the woman he loves.

Summary: Katie and Lala hash out their issues after a blowout argument; Sandoval throws himself back into the dating pool; Ariana warns Scheana about the consequences of rekindling a friendship with Sandoval.

Summary: Schwartz makes a startling revelation to Lala about a past hookup that sends Katie spiraling; James hosts a DJ night at Hotel Ziggy; Ariana and Katie encounter new issues in opening their sandwich shop; Brock drops a bombshell about a recent liaison.

Summary: Lala hosts a water-tasting event; Schwartz confronts Katie for her recent hookup; Ariana takes Sandoval to task for an irresponsible mishap; tensions boil over when Tom and Ariana clash about long-simmering resentments.