The drama continues at Heather's opulent party in this season's finale. Sarah's bizarre actions force Heather to take drastic action. Tamra and Gretchen commemorate their new friendship with a heartfelt gift. Alexis' husband, Jim, crashes the party and confronts Heather's husband, Terry, about calling Alexis phony. Meanwhile, Brooks instigates an explosive fight between Vicki and Tamra that leaves the future of their friendship in doubt.

In part two of The Real Housewives of Orange County reunion, Vicki's relationship with Brooks takes center stage when he stops by to give the ladies a piece of his mind. When Briana joins the group, Vicki's fidelity and Brooks' motives are called into question as accusations against the couple arise. By the end of the reunion, friendships are frayed, new alliances are formed, and the women's relationships with one another may never be the same again.