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.

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.