Jen, Lisa and Whitney unite to address their issues with Heather, but only Lisa finds common ground with Heather. Meredith copes with past family trauma. The husbands meet up for a BBQ. Jen and Angie K. invite the women to San Diego, but an interaction with Danna causes Jen to storm off.

The chaos on the high seas continues as designer shoes end up overboard. Pushed to her limit, Lisa reconsiders her friendship with Jen. Back at the house, the ladies get ready for a luau dinner, but tensions come to an all-time high when the women throw shots at and issue ultimatums to each other.