Tensions between Luann and Bethenny reach explosive levels; Ramona accuses Luann of breaking the "girl code;" Dorinda has an epic meltdown; Jules' first weekend away with the ladies takes a turn as she is confronted with a family emergency.

Sonja has a confrontation with Harry and LuAnn. Aviva makes her return to the group, which causes insults and accusations to be thrown around between the ladies.

While in the Hamptons, LuAnn and her children receive a surprise visit from erstwhile housekeeper Rosie. The arrival of Labor Day results in laborious drama when both Ramona and LuAnn throw separate parties, forcing the other wives to choose bashes. Meanwhile, Jason asks Bethenny a crucial question over dinner; and dramas play out between LuAnn and Mario.

LuAnn and Bethenny clash at a Fashion Week show. Later, Kelly, Jill and Ramona gossip about all things Bethenny. As for Bethenny, she hosts a style event, where she and Kelly actually agree on a cease-fire. Meanwhile, Jill's show results in an explosion of drama and one person's stormy exit.

Bethenny and Ramona have a venomous argument while walking across the Brooklyn Bridge. Things don't get any better for Bethenny, who then learns about a family illness. Meanwhile, Kelly snaps photos of random Manhattan denizens for an article; and Alex continues to piece together a fashion-weekend event.

Kelly joins Sonja and LuAnn in the Hamptons for gossipy dishing about romance, marriage and under-the-covers relations. In other diva plot arcs, all the ladies attend Kelly's party, where Bethenny springs breaking news on them and dramas revolve around Jill.

Jill hires new housewife Jennifer Gilbert to plan her holiday bash. Elsewhere, a stunned Bethenny discovers that her pregnancy was leaked on the blogosphere; drama sharpens between Alex and Jill; Sonja visits a nip-tuck doctor and a psychic.

Reunion dramas include Sonja opining on how she was treated by the ladies during Season 8. Also, the women discuss the lighter side of their Miami excursion, and Luann is on the hot seat when the conversation turns to Tom.

Tensions arise at breakfast as Luann and Dorinda continue their argument from the night before, as do Carole and Bethenny; the ladies ditch the city for a private island and some fun in the sun, despite the strained relations; and the day ends abruptly with a traumatic boat ride after the ladies are rushed off the island due to high seas.

The New York ladies reunite. Here, Dorinda recalls her toughest, most embarrassing moments with John; the women dish on Luann's ex and sharpen focus on Ramona's love life; and a look back at a Berkshires trip causes accusations to soar between Luann and Bethenny.

A reunion continues with the Big Apple ladies. Here, Bethenny gets emotional about her life situation, Dorinda addresses her inclination to meddle, and the group zeros in on the saga revolving around Tom.

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.

As the Puerto Rico trip comes to an end, things go from bad to worse as the Brynn and Ubah feud escalates to the point of no return. A shocking claim leaves everyone speechless and shaken. Back in New York City, the ladies struggle to move forward.

Bethenny plans to make lunch for the women, but Ramona stirs up tension when she wants everyone to go out to eat instead. Later, Ramona's antics interrupt the ladies' night of dancing, and Sonja plans a fun day at a hotel.

The women celebrate Luann's engagement with mixed feelings and mixed cocktails; Jules struggles with long-distance parenting; tensions between Luann and Ramona boil over, while Sonja's feelings about Luann's engagement finally comes to light.

An old-school skirmish erupts between Dorinda and Sonja during a lunch in the Bronx. Tinsley breaks down during therapy. The ladies head to Vermont for a snowy weekend, despite tension between Ramona and Bethenny. Tinsley's life decisions are discussed.

The ladies arrive in Mexico, with Ramona and Sonja scrambling for the best villa room and swiftly alienating themselves. Tinsley addresses a damaging article about her. Luann takes a boozy tumble. Bethenny reprimands Sonja for her bad behavior.

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 take a limo ride to Atlantic City to celebrate Ramona's birthday, her first without Mario. A lavish dinner, raucous gambling, dirty dancing and dramas surrounding Sonja are in the cards.

Ramona and Bethenny have a tear-filled heart to heart after the other ladies go to bed. In the morning, Dorinda has a serious talk with Sonja, reminding her to stand up for herself and not allow the other women to walk all over her. Sonja decides to skip the yacht outing where the other women have luxurious day connecting with each other.

A profanity-laced dinner continues, with Dorinda storming off and Heather dashing after her. Later, Heather tries to confront LuAnn and Ramona for their late-night antics. Also: Grievances air and tensions rise at Kristen's decorating dinner.

Ramona’s Hampton’s dinner party continues and barely into the salad, Dorinda takes the conversation to a new level when she confronts Sonja about her incessant trash talking. Carole disinvites Ramona from her Election Night party because she doesn’t believe Ramona is taking the presidential election seriously enough. Tinsley gets drinks with Luann and Dorinda, but leaves out her roommate Sonja.

Fresh off of their day trip to Tequila, the ladies drink up and strip down back at the villa. Sonja spreads the love to all the ladies while Bethenny and Ramona have a nude detente in the pool. Dorinda and Bethenny get into a fight that leads to knives flying. Some of the ladies split off for a day of fishing and whale watching. At their final dinner Luann flubs the rules of a game.

As the ladies head out for a day of shopping in Cartegena, Bethenny continues to unravel and the women’s patience with her begins to run out. Carole approaches Sonja for insight on Bethenny. Later over dinner, Tinsley, Ramona, and Sonja try to not eavesdrop on a heated conversation between the two distant friends. A comment Luann makes to Dorinda sends Dorinda off the deep end and puts their friendship on the rocks.