LeeAnne is overwhelmed by the planning of her wedding; D'Andra inherits the family business which isn't doing as well as she thought. Stephanie hosts a “Friendtervention” in an attempt to help mend fences between former besties LeeAnne and D'Andra.

In the aftermath of the Friendtervention, LeeAnne and D’Andra meet up to discuss their differences one-on-one; Brandi continues to struggle with her brooding daughter. D’Andra turns 50 and throws herself a rip-roaring roast party.

D’Andra blows off a big business meeting with Travis because of a “hair emergency.” LeeAnne gets creative in order to afford her uber expensive couture wedding gown. The women all travel to Careyes, Mexico for some fun in the sun at Kary’s resort-like villa but things quickly take a turn when tensions rise between Kary and LeeAnne.

Day two of the girls trip in Mexico kicks off with a polo match, a talking horse, cartwheels, and a lot of tequila, but Stephanie finds herself having a hard time finding the fun. Kameron and Brandi find themselves at odds over LeeAnne’s behavior. An explosive argument erupts when names are called and napkins are thrown.

On the third day of the girls trip to Mexico, Stephanie confides in Kary about feeling overwhelmed by Kameron’s harsh comment to Brandi. Brandi and Kameron meet up beachside to discuss their issues. All the women get covered in mud and bond during a ceremonial sweat lodge experience. On their last night together, an unexpected argument breaks out between Brandi and LeeAnne.

Upon returning back from their trip to Mexico, D’Andra seeks business advice from Travis. Kameron feels like a third wheel when it comes to the bond between her husband and daughter. LeeAnne kicks off the first of several pre-wedding celebrations with a lingerie shower, where Stephanie confronts Kameron about their issues in Mexico.

Brandi continues to attempt to bond with her daughter Brooklyn, while Stephanie and Kameron try to work things out after their dust-up at LeeAnne’s lingerie shower. Kary confronts LeeAnne about D’Andra, and all the girls go ghost hunting at a real haunted house, but find themselves haunted by ghosts of the past.

A death in the family has Brandi hosting a funeral for a beloved Redmond, while Mama Dee refuses to help D’Andra with the failing family business. Kameron spins in circles when two of the ladies back out of her couples shower for LeeAnne. But Kameron sends everyone spinning, when she crashes Kary's girls night with other uninvited guests in tow.

Kary decides to attend LeeAnne’s wedding, despite their fractured friendship. While Brandi continues to clash with her daughter Brooklyn, she receives shocking news about another baby up for adoption. D’Andra joins forces with husband Jeremy to confront Mama Dee about her failing company, while LeeAnne worries her mother might make a scene at her wedding.

LeeAnne and Rich finally tie the knot, and her wedding reception leaves everyone hungry for more. Brandi tries to convince Bryan to say “I do” to adopting Bruin’s sibling. Kary and Eduardo engage in a power struggle over dinner, and Stephanie invites all the women to accompany her to Thailand.

The Dallas ladies’ first day of the trip is jam-packed as they explore all Thailand has to offer. But it’s not all fun and leisure, LeeAnne and Kary remain at odds, and when D’Andra shows up to dinner wearing LeeAnne’s L’Infinity Dress as a joke, LeeAnne thinks it’s no laughing matter.

A close encounter with rescued elephants is a uniquely bonding experience for everyone. An exotic outdoor market proves to be a nose-holding experience, while a condom-themed restaurant is an eye-opening one. A trip to the infamous “Red Light District” shocks and surprises, leaving LeeAnne and Kameron at odds.

In the aftermath of their trip to the Red Light district, LeeAnne turns on Kameron, making her wonder if her reputation in Dallas will be tarnished. Travis arrives to find Stephanie romancing someone else, and conflict between LeeAnne and Kary, leaves everyone shocked and stunned.

Upon returning from their turbulent trip to Thailand, Brandi throws a party to celebrate the one-year anniversary of Bruin's adoption; Kary confronts LeeAnne after learning about the ugly things she said about her.

The ladies rehash their wild trip to Mexico; tensions run high as Kameron and Stephanie discuss their complicated relationship; the drama continues as LeeAnne tries to answer burning questions about her unconventional wedding.

In the supersized second part of the reunion, the women discuss the highs and lows of their trip to Thailand, including LeeAnne's L'Infinity dress debacle and the controversial visit to the Red-Light District. Emotions run high when questions about LeeAnne's shocking remarks towards Kary turn into a heated argument between LeeAnne and the whole group.