Part 1 of 2. The 90210 ladies regroup for a reunion. Among the dramas: Adrienne's decision not to attend the proceedings sparks controversy; Taylor makes an admission; and Lisa and Kyle's dicey relationship is addressed. Andy Cohen hosts.
In the Season 3 finale, Lisa anticipates renewing her vows while her housewarming party takes a quick downhill course. Here, Faye picks a fight with Lisa, Kyle's loyalty is questioned, Kim and Kyle clash, and Adrienne arrives in tears.
Adrienne celebrates her new vodka line with a showy bash, yet her relationship with Paul begins to splinter. Elsewhere, it's a crescendo of dramas at Lisa's big party when Brandi confronts Marisa and runs afoul of Faye.
A Paris trip concludes with a boat ride on the Seine River, marked by a surprise connection between Kim and Brandi. A return to 90210 finds Lisa organizing her vow-renewal party with planner Kevin Lee. Also: Kyle prepares for her boutique launch; and Kim's erratic behavior is addressed.
Kim celebrates her post-surgery nose by throwing a backyard party, yet dramas unfold when Taylor says she'll be a no-show. Then, Kyle hosts a party, where a confrontation ensues about a purported lawsuit against Brandi.
A Las Vegas trip continues with Brandi coaxing the women to try pole dancing. Elsewhere, the wives opine about Kim's plan to get a nose job, and a Sin City dinner sours quickly when the ladies dish about new issues and old problems.
Kyle's daughter graduates from sixth grade, yet Kim, who's planning a nose job, doesn't make an appearance. Elsewhere, Brandi and the wives journey to Las Vegas, where Brandi gears up to host pole-dancing events and the ladies have a revealing dinner.
Dramatic dishing continues at a Moroccan restaurant. Elsewhere, discussions center on Brandi's behavior; Yolanda encounters her ex-husband; Kim reaches out to a psychic about ghostly goings-on in her house; and Brandi invites the wives to Las Vegas.
Taylor enlists a psychic to cleanse her house; Brandi faces Scheana, a waitress who allegedly had an affair with her ex-husband. The action then shifts to Lisa's restaurant, SUR, where Scheana picks up shifts and tangles with the supposed staff leader.
Kyle's 16-year-old daughter receives a memorable gift. Meanwhile, Lisa hosts a food event, but the taste turns sour and bitter when Brandi reveals very private information, leading to a battle royal with Adrienne.
Dramas rise at a summit meeting. Meanwhile, Kim spins into motion a group getaway to Ojai, Cal., where Kim and Brandi form a surprising bond. Before long, friction develops between Adrienne and Brandi.
New housewife Yolanda H. Foster throws a party, but a sing-along at the bash stirs up friction. Elsewhere, tension swells between Lisa and Adrienne, yet the two plan an after-party discussion to settle their differences.
Kyle celebrates her daughter's birthday with a carnival-theme bash. Yet her husband arrives late due to a charity event in which he walked a mile in shoes with high heels. Party dramas rise when Lisa snubs Adrienne.