In the wake of all hell breaking loose at Shannon's 70's party, Shannon heads to Dr. Moon to try a new remedy to remove toxins. Kelly tries to make amends by inviting Shannon to sit down and rehash the night. Meanwhile, Meghan travels to Washington, D.C., with Heather by her side, to speak on behalf of colorectal cancer. Tamra explores custom bikinis for her fitness competition and Vicki tours Briana's new house in the midst of renovations.

While Vicki revels in the return of her family to Orange County, Heather strives to find a work/life balance on the eve of her book launch. Kelly struggles to figure out Shannon's motive for setting her up and bonds with Vicki over their shared anger. Tamra plans a last hurrah for Meghan before she gets pregnant, but the sushi party goes off the rails when Kelly loses her cool and crosses a line.