The ladies head back to New York where Luann records her new single; the women attend Dorinda's 1980s aerobics workout for charity; Ramona plans a surprise birthday party on the same night as the Countess' Cabaret.

The show must go on for LuAnn who has been snubbed by the ladies; Dorinda is shocked by the surprise party; Tinsley is accused of lying about her relationship with Scott; Bethenny throws her S'mores and Whores Party.

The ladies discuss how Bethenny dealt with the death of her boyfriend; the women give updates on their new living situations; Bethenny argues with Luann; Dorinda and Luann finally address their issues, leveling accusations and shedding tears.

The women confront Ramona over her lies and insults; Dorinda, Bethenny, and Sonja challenge Tinsley to tell the truth about her relationship; Luann is in the hot seat as Andy and the ladies discuss her sobriety slip and probation violation.

The women finish raking Luann over the coals about her sobriety; Barbara joins the ladies to discuss her scandalous comment about Luann's singing; the ladies relive some of their most outrageous moments; Sonja is in the spotlight for her drinking.

The New York ladies are back and moving forward; Sonja struggles with an empty nest after her daughter has left for college, while Luann celebrates the end of her probation; Ramona is on the prowl and looking for love.

In the city, Tinsley defends herself to Sonja and Leah over her continuing feud with Dorinda; to celebrate the end of summer the ladies head out to Ramona's house in the Hamptons for a long weekend; Tinsley's flu leaves her voiceless.

The girls weekend in the Hamptons continues; Ramona brings the ladies to a local winery where they learn about Leah's past and Dorinda's present; Ramona's hosting continues at a mansion party that evening with a group of new friends.

Hamptons weekend wraps with a tennis grudge match between Luann and Ramona, while Sonja's dog groomers make a house call and Luann gets in on the action; a girls' night at Ramona's house turns into a wild ruckus.

It's fashion week in NYC; Sonja is preparing for her "Sonja, by Sonja Morgan" fashion show and the ladies sit front row for Tinsley's big return to the runway; Luann plans her new cabaret show; while Leah fears that Sonja resents her.

Leah continues to have issues with her mother and Tinsley gives updates on her dating life; Sonja realizes that her fashion line isn't doing as well as she hoped; Luann hosts an anti-bullying comedy show.