Meredith's birthday party comes to an icy cold ending when Jen and Mary get into a heated argument about Mary's insensitivity towards Jen's aunt, and Whitney confronts Lisa about an incident at Whitney's vow renewal. While Meredith battles marriage problems and Whitney helps her dad through a difficult time, Heather invites all the women to a ski day, which starts out well, but goes downhill when Whitney and Heather confront Lisa about her judgmental behavior.

At the conclusion of Whitney's 20s Party, Jen's explosive temper reaches a boiling point and Meredith and Mary are the targets. Meredith finally reveals the truth about her marriage to Lisa, while Jen shares the details with Heather, who then tells Whitney. Mary takes the high road and invites Jen to her luncheon hoping to squash their issues for good, but when Jen tries to open up to the group things take a sudden turn for the worst.