Erin catches Brynn up on the newest tension between Sai and Jessel. During the group's picture-perfect boat day, Jessel clashes with Erin and Sai while Brynn and Jenna get closer than ever. Back at the villa, Ubah and Erin's pranks on each other result in a shocking shift in their friendship.

On the group's final day in Anguilla, a storm moves in over Erin and Ubah's friendship. The women venture out for a rum tour where Sai revives her bartending career. The ladies limbo with the locals, but Erin leaves early. Jessel's hit list is revealed. At the villa, Erin seeks resolution but is boiled in the hot tub instead.

The Hamptons trip continues as the women hit the tennis courts and cook a Shabbat dinner; Racquel opens up about her childhood; Brynn and Erin's prank leaves some a little uneasy; as tension builds, it threatens to derail the end of the trip.

Ramona reveals Sonja's financial secrets. Elsewhere, Kristen visits a new modeling agent; Sonja is stood up by her 23-year-old flame; and the heat is on at a spa when Kristen and Ramona have a dispute.

The women confront Jenna for sneaking out in the middle of the night. Brynn arrives in the Hamptons. At lunch, the women grill Jessel over her incessant complaining and Brynn calls out a double standard. Over sushi, everyone bonds playing a scandalous game of Two Truths and a Lie.

Sai shares her content creation journey, and Jenna cleans out her multiple closets of fashion artifacts. Escalating tension between Erin and Jessel makes for a frosty café confrontation that Brynn and Sai hear about over a game of chess. Jessel hosts a charity event attended by the who's who of the fashion elite, except for Jenna Lyons.

Ubah takes Erin diamond shopping for her 10th anniversary party. Jessel navigates the exclusive New York City pre-school scene. At Erin and Abe's anniversary party, a bored Brynn stirs the pot and Sai gets upset about the lack of food.

Sai helps Jenna cast models for her false eyelash line. Brynn helps her ex-fiancé shop for luxury classic cars. After keeping her IVF journey a secret, Jessel finally reveals her infertility struggles to her mother. Brynn invites the women to holiday wreath making, where Erin confronts her about her antics.

Over the holidays, Jenna's brother visits New York and Brynn connects with her brother in Los Angeles. Sai and Ubah shop for the group's warm-weather getaway to Anguilla, but Jenna's choice to fly separate from the rest of the ladies results in an icy greeting on an island paradise.

Back in New York, Sai and Erin share a spicy double date with their husbands and Brynn plays wing woman to Jenna. Ubah hosts a post-Anguilla healing session for the group. Jessel finally has a staycation with her husband, but at lunch with Sai, she tests their friendship.

Couples' night, hosted by Erin and her husband, puts Jessel and her husband in the hot seat. Ubah shares a secret with Sai. Jenna takes her son shopping. Sai shares a heartwarming moment with her aunt.

Erin and Sai pick up the pieces after Brynn’s explosive party. Erin opens up about issues in her marriage and Jenna bonds with her son. While Ubah struggles to let her guard down, the ladies take off for their girls’ trip to the Hamptons.

The ladies arrive in the Hamptons where Sai and Brynn attempt to clear the air, but a miscommunication causes more conflict. Racquel and Rebecca open up about their pasts. Ubah and Brynn find themselves at odds.

A Virgin Island getaway turns nasty when an argument breaks out between Kelly and Bethenny, ruining a peaceful breakfast and precipitating a meltdown for Kelly. Later, Bethenny cooks up dinner, but it's hard to swallow when there are yet more blowups. Cut to the Big Apple, where Jill mulls over going to the Virgin Islands to see all the drama in person.

Tinsley shares a recent picture of Ramona locking lips with Harry Dubin; Sonja loses it after leaving an AA meeting, but Luann doesn't let that rain on her cabaret parade; the women confront Luann over her selfish ways; Bethenny has a panic attack.

An island getaway continues with a party at the ladies' villa, but only two guests make appearances. Later, the wives take in a yachting adventure; and Aviva heads to St. Barts despite her fear of flying.

Aviva's father returns and visits a health-food store with his daughter; Sonja negotiates a settlement with her former husband; and Heather preps for her fashion show and has a surprise request for Aviva.

The ladies land in St. Barts—sans Aviva, whose phobias keep her home. The wives delight in their high-level villa and take in a night that features tequila shots, a pirate-theme performance and flirtations with their sightly liaison.

Social events spin out of control in the Season 5 finale. Here, Ramona is seemingly at the center of showdowns, including Heather's fund-raiser (Ramona vs. Sonja) and Carole's book party (Ramona vs. Heather, plus Ramona vs. Aviva).

After Sonja crashes Lu’s rehearsal, Luann asks the women if they think Lady Morgan might be taking something to make her act this way. The ladies then head to Miami for fun, sun, and the revelation that Ramona made out with Harry Dubin. It’s all too much for Sonja to handle, and after a few drinks she lashes out at Luann and Ramona.

The ladies have a dinner get-together in Miami with Sonja and her date—who happens to be Aviva's lusty father. Later, Aviva seeks advice on how to deal with Ramona, and Carole calls out LuAnn about a past misdeed.

Part 1 of 2. Host Andy Cohen presides over a reunion installment, in which the privileged ladies of the Big Apple reconvene to remember the diva dramas of Season 2.

A London getaway winds down with a game of croquet and a battle royal heating up between Carole and LuAnn. Back in the Big Apple, Aviva throws her anniversary party, where she ends up taking a tumble down stairs in front of everyone.

Carole, Sonja, LuAnn and Heather bask in a trip to England. The ladies stay at a well-appointed penthouse and later have a slumber party, where they bond, play games—and dish on Ramona. In New York, Ramona and Aviva shop for shoes.

The ladies' vacation continues, yet Ramona frets that it's turning into a couple's retreat. On the final night, Sonja and Ramona spark tension when they duck out on the wives' original plans to see a concert.