Meghan throws a party to celebrate the grand opening of her candle store. Tensions ignite as Vicki threatens to expose a secret about Shannon that leaves all the ladies confused. As Kelly and Michael try to navigate their tumultuous marriage, Meghan and Jimmy try to get a handle on her highs and lows of pregnancy. Meanwhile, Heather throws a fancy party filled with mixed emotions and cocktails to celebrate the release of her book; where Vicki and Shannon finally confront one another and Meghan proposes a trip to Ireland to investigate her heritage.

After a bumpy start to their vacation in Ireland, the women head off on separate adventures. Meghan takes Kelly to nearby Greystones Village in an attempt to locate distant relatives, while Vicki, Tamra, Heather and Shannon travel to a milk farm to get up close and personal with Ireland's finest cows. The two groups reconvene for dinner where Kelly awkwardly tries to make amends with Tamra. However, the peace treaty doesn't last long, as tensions reemerge and bombs fly when the ladies make their way back to the airport, leaving this group of friends in disarray like never before.