The Real Housewives of New York City - Season 10 (2018)

Tensions boil over between Dorinda and Sonja at Luann's brunch. At Ramona's dinner party, Tinsley delivers a low blow to Sonja that shocks the whole party. Meanwhile, Luann finds her foot in her mouth with Bethenny and her boyfriend, and Sonja calls out Ramona in a text for not being a true friend.

Back in New York City, Tinsley gets a surprise delivery to her home. Over tea, Carole and Luann have a heart-to-heart. And when Sonja confronts Ramona, a shouting match ensues.

Carole reveals shocking news about her relationship with Adam. Sonja preps her townhouse for rental. At an important business dinner in Miami with Bethenny's relief team, Dorinda jeopardizes her chances of going to Puerto Rico.

Bethenny and Dorinda hit the ground in Puerto Rico and get to work. Ramona attempts to mend fences with Sonja. Carole works on a revealing story with a magazine, while Luann starts to plan a special performance. Bethenny lets Dorinda in on an incident involving Carole's ex, Adam. Carole confronts Bethenny about an accusation she's made that puts Ramona in the middle of their friendship.

It's time for the ladies to make their annual visit to the Berkshires. Carole confides in Dorinda and Ramona about some tension with Bethenny, which puts Dorinda in an uncomfortable place. All of the ladies get decked out for a 1920's murder mystery dinner party taking place at Blue Stone Manor, but it's an argument between Carole and Bethenny's that has the ladies guessing whodonnit?

Carole and Bethenny continue to hash out their issues during the murder mystery dinner party. Later, in a shocking turn of events, Luann gets arrested over the holiday.

Two weeks after Luann's surprising arrest, she is still the talk of the town. While she's in rehab in Palm Beach, the ladies try to piece together what happened. Bethenny throws a launch party for her new jeans line, and later meets Carole for lunch to try and resolve their dispute. Sonja flees her construction site and spends a night with Tinsley. Dorinda takes the initiative to check-in on Luann in rehab.

Tinsley tries on wedding dresses with her mother, Dale. While Luann is ending her stint in rehab, the women tough it out during a prison style workout. A few of the ladies attend the funeral for Bobby Zarin, and Bethenny and Jill Zarin share an intimate moment after the funeral, for the first time in years. Luann heads home after her month in rehab.

Luann is out of rehab and the ladies whisk her away for a spa weekend in Connecticut. The relaxation doesn't last long as Luann discovers that Ramona tried to get an invite to Tom's New Year's Eve party. Meanwhile, Dorinda and Sonja clash over a family crest.

As the ladies try to relax into their trip to the spa, Luann finds herself dealing with unwanted press, while Dorinda confronts Bethenny about lingering tension.

Luann prepares for her upcoming cabaret show; Bethenny creates a dating profile for Sonja; Tinsley moves into her new penthouse, without Scott's help; the women attend a speed-dating event; the ladies decide to go on a trip to Cartegena, Colombia.

The women arrive in Cartegena, Colombia, for their vacation; Bethenny has an allergic reaction; Luann reveals a shocking new look; an injured Ramona gets wheeled around the cobblestone streets; Bethenny clashes with Dorinda and Carole.

As the ladies head out to shop in Cartegena, Bethenny continues to unravel, and the women's patience with her begins to run out; Carole approaches Sonja for insight on Bethenny; a comment Luann makes to Dorinda sends Dorinda off the deep end.

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

Ramona shows off her newly renovated Hamptons home, while Sonja stands firm on the asking price of her townhouse. Bethenny invites Dorinda to her new apartment, where Dorinda reveals she's still angry about Luann's comment in Colombia. Adam shows up bearing gifts at Carole's athletic-chic Cosmopolitan Magazine party. Sonja throws some slipper shade at Ramona's Skin Care event.

It's the night of Luann's cabaret show, #Countess and Friends. Over pre-cabaret drinks, Dorinda, Carole and Tinsley go over some shocking guest list faux paus on the Countess's part. During the performance, Luann gets heckled and Sonja shows some skin. At the after party, Ramona has a burning question for Bethenny and Dorinda has some parting words for Luann.

The ladies relive some of the fun times they had this season, gathering to discuss the year's events with one glaring absence. The women also pay tribute to Bobby Zarin while questioning Bethenny's motives for attending his funeral. Dorinda confronts questions about her biting tongue, and Bethenny defends herself when a few of the others gang up on her. Finally, everyone gets a lesson in graciousness from Dorinda, and they take a look back at some of their questionable wardrobe choices.

Dorinda defends herself against accusations that she might have a drinking problem. The ladies discuss Luann's obvious absence and share their observations of her recent behavior. Tinsley reveals startling details about her relationship with Scott. And Bethenny and Carole dive into what caused the seismic shift in their friendship and call each other out for comments made both on and off the show.

Bethenny and Carole continuing to go shot for shot about the dissolution of their friendship. The women relive their stomach-churning trip to Colombia. Carole revisits the highs and lows of her season, and Tinsley takes issue with Carole's protests about their relationship. Sonja discusses a new chapter in her life and delves back into her issues with some of the ladies. The women end things by sharing their biggest regrets of the season.