Jen throws a birthday party for her close friend Meredith; Heather discovers that her longtime friend from college has been spreading rumors about her; Whitney finally has her dream wedding with her dream guy.
Meredith's birthday party comes to a cold ending when Jen and Mary get into a heated argument about Mary's insensitivity towards Jen's aunt; Whitney confronts Lisa about an incident at Whitney's vow renewal; Meredith battles marriage problems.
With the ladies operating on a clean slate, Whitney plans a Roaring '20s party; Heather hosts a baby shower for five of her young, pregnant Mormon employees; Meredith and Mary grow closer; Jen acts inappropriately at a nighttime gathering.
At the end 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's luncheon ends in disaster when Jen accuses Mary of being racist and Mary accuses Heather of being two-faced; while Whitney deals with her daddy issues, Meredith's marriage problems escalate and Lisa reflects on her own marriage.
When Sundance arrives in Utah, it's nonstop parties and celebrations for the ladies; when Whitney throws her husband, Justin, a 52nd birthday party, Jen and Mary finally call truce; Heather is on the prowl for a one-night stand.
Now that Sundance is over, Lisa makes a promise; Whitney grows concerned when her dad says he's ready to move on from the treatment center; Heather finally comes clean with her daughters over her hesitations with Mormonism.
Lisa and John have a heart to heart; Whitney enlists her husband's help; Meredith and Seth decide to give their marriage another shot; Lisa, Meredith, Jen and their husbands hang out at Jen's house.
Meredith and Seth are happy to be back together; Jen plans a surprise birthday party for her husband and doesn't invite Mary; Whitney hears that the other women are talking about Jen behind her back.
Jen's relationships are on the rocks after her blow-up at Sharrieff's birthday party; Lisa focuses on work; Meredith and Seth share some good news; Whitney and Heather try to make amends with Jen.
Whitney hosts a dinner with her dad and siblings in an effort to reunite their family; Jen sets Heather up with Sharrieff's best friend; Jen begins to question Heather's true loyalty.
The Vegas trip implodes during dinner when Jen feels betrayed by Meredith and Lisa; the ladies gather together to discover there is more deception brewing amongst the group; Mary reminds Lisa of Jen's destructive behavior.
At the Beauty Lab launch party, Jen tries to make amends with friends but it doesn't go as planned; Heather worries that she hasn't connected with Jen since Vegas; Meredith and Seth realize that their marriage is a hot topic for their friends.
Jen reveals the issues that still haunt her and her husband, Sharrieff; Whitney addresses the rumors about her marriage; Meredith confronts Jen about the awkward night at her house; tensions rise with Lisa and Mary.
Mary reveals details about her marriage and sets the record straight about her church; Jen puts the hospital comments to rest; Meredith demands respect; Lisa reaches her breaking point.
Justin reveals details about leaving the Mormon church; Robert addresses Jen and her husband; Whitney shares an update on her dad's sobriety; Jen opens up about cultural insensitivities within the group, leaving the women confused.