The women of Salt Lake return and Heather wants to get everyone together for a fresh start. Whitney's public comments about Meredith put a strain on their already fragile friendship. Angie introduces her friend Monica to the ladies. Lisa struggles with her son Jack's decision to go on a Mormon mission.

Lisa and Meredith meet up to talk out their issues. Meredith plans a trip to Palm Springs for the women but snubs one of the ladies. Monica reveals a secret about her past to Heather and worries about leaving her kids for the first time. Whitney takes matters into her own hands with Angie for the trip. In Palm Springs, Lisa loses something valuable and sentimental.

The Palm Springs venture continues and Meredith tries to make the best of Angie crashing her trip, but the night ends in threats, tears and puke. The women start to question Monica's behavior as she turns on her closest friends. Heather and Angie's issues come to a head. Lisa works on her friendship with Meredith.

On the final day of their Palm Springs trip, Whitney takes over and calls Meredith on her behavior. Monica and Lisa's tension reveals itself in head-to-toe drag. Angie and Meredith continue to throw insults at each other. Heather and Angie bond during a team building exercise. Mary bows out of participating in the ladies' plans.

Heather talks to her daughters about the effect her book has had on them. Whitney and Justin struggle with their changing roles now that Justin is back at work. Lisa, still hurt from the accusations made in Palm Springs, hosts an event and confronts Monica. The rumors about Angie's marriage reach a boiling point.

The rumor about Angie's marriage has a ripple effect in the group. Meredith finds comfort in her family after a traumatic incident on the road. Old issues between Lisa and Heather resurface. Monica's parenting is called into question by her own mother.

Mary's son's relationship status is revealed. Meredith retreats from the group and attends the GLAAD Awards. Heather confronts Lisa about Jack's mission. Angie tries to get clarification about the rumors, but things go awry when Monica's mom intervenes at Angie's Greek Easter party.

Tensions escalate as Monica dines with her mother and Angie talks to her dad about her marriage. Lisa puts her focus on planning a mission location reveal party while Whitney meets with Mary for an explosive dinner.

After Angie and Monica reconcile, Angie gets caught in the middle of Lisa and Monica's feud. Whitney juggles parenthood and career by throwing two parties in one weekend, and tensions boil over between friends. Heather tries to come to an understanding with Lisa. Meredith dips her toes back into the group, but Lisa has questions about her recent behavior.

In a surprising turn of events, Lisa feels betrayed by Angie and embraced by Heather. Monica and her mom agree to move forward. Meredith opens up about her marriage on her podcast with Seth. Heather hosts a reading for her book and searches for community while leaning on her family and old friends.

Heather proposes a group trip to celebrate Monica's birthday, causing unresolved tensions between Monica and Lisa to reach a boiling point. Angie leans on Whitney for advice about her marriage woes. Whitney and Justin join Meredith and Seth on their new podcast and open up about the status of their marriage. Heather throws a Pioneer Day-themed lunch to thank her friends for their support, but the day ends with hurt feelings and the upcoming trip hanging in the balance.

The ladies are unsure about how they feel about going on a trip with Monica for her birthday as Monica turns to Mary for advice. A lunch between Lisa and Meredith leaves their friendship on shaky ground. When Whitney loses a close friend, she looks to the ladies for support but finds one of them isn't as empathetic as she expects.

On their first international trip together, Whitney and Lisa avoid each other until Heather's comments send dinner into chaos. After not getting a room with a bathtub, Meredith goes from a little under the weather to severely ill but recovers in time to hold the ladies accountable on the Sprinter ride to dinner. Excited to kick off her birthday celebration in Bermuda, Monica comforts Meredith, and a new layer of their friendship is revealed when dirt on Angie surfaces.

On their second day in Bermuda, the women throw Monica a birthday bash, but things go south when she receives bad news. Monica's personal questions rub Heather the wrong way. When a new rumor about Angie surfaces, all roads seem to lead to Meredith as the women don't know who to believe.

On day three in Bermuda, Meredith tries to clear her name, but finds herself in an uphill battle with the ladies. Monica worries that Meredith’s attempt to smooth things over with Lisa will put a wrench in the progress she's made on her own friendship with Lisa. Whitney calls out Heather for being hypocritical, leading to a showdown between the two.

On their final day in Bermuda, Heather receives a devastating phone call with incriminating information that affects the rest of the women. Meredith remains in hot water for her role in the rumors about Angie. A bombshell about Heather's black eye is revealed. Someone in the group is exposed and the women must decide whether they will cut ties or accept past mistakes.

The ladies reunite in New York to discuss the season's highs and lows. New housewife Monica sets the record straight about her past – from her affair, history with the Mormon church and how she became an informant in her ex-friend's criminal case. Angie confronts Monica and Meredith about the rumors regarding her husband and the Greek Mafia.

In Part II of the reunion, Monica breaks down while reflecting on her relationship with her mother. The rift between Angie and Monica grows as they disagree about the unseen events from Greek Easter. The group is joined by Mary, who comes to Monica's defense and sheds light on where she currently stands with the rest of the women.