Ramona is back from her family trip to Africa and she's collected a new-found inner peace. When she hears from Heather all the recent drama in the Hamptons, she makes it her personal mission to bridge the tension between Heather and Aviva. Kristen and Carole meet their old friends Brandi and Yolanda from "The Real Housewives of Beverly Hills", and share juicy details about Kristen's bachelorette party in Vegas several years ago. There's a peaceful calm in the air when Heather and Jonathan host a 10-year anniversary party, but when Heather finds out that some of her "friends" decided to boycott the event, a tempest of anger forms.