Vicki announces that her boyfriend, Brooks, is living with her; Heather builds her dream house; Shannon and David try to repair their broken marriage; newcomer Meghan King Edmonds is ready to play ball; Tamra undergoes plastic surgery.
Shannon and David are pushed to new limits on the last day of the couples retreat; the piñata isn't the only thing that gets bashed at Vicki's party; Shannon realizes she has a history with Heather's friend Meghan; Vicki and Tamra come face to face.
Heather and the others travel to Napa Valley to celebrate the launch of her new sparkling wine, Collette; Meghan is excited about her first trip to wine country; Shannon continues to struggle with her emotions regarding David's affair.
Tensions are high at the close of the Napa Valley trip; Vicki and Brooks consider some unconventional cancer treatments; Meghan puts the final touches on her first charity event; Heather faces the consequences of going over budget on her dream home.
Vicki gets a telephone call that changes her life; Shannon extends an olive branch to Meghan when she hosts a Bunco party at her house; an unconventional date night turns bloody for Heather and Terry.
The passing of Vicki's mother sends shock waves through the group, causing everyone to reflect on family; Tamra celebrates the birth of her granddaughter; Shannon continues to repair her marriage; Meghan tries to create a lasting memory for Hayley.
Vicki enlists a medium to communicate with her late mother; Shannon contends with weighty emotions while striving to shed pounds; Meghan learns a lesson about parenting while trying to teach her stepdaughter responsibility; the women go bowling.
When Meghan hosts a couples' game night, her husband's absence becomes fair game as a topic of discussion; Shannon and David meet with their therapist; the women head off for a tropical getaway to French Polynesia.
In French Polynesia, the women travel to the island of Moorea, where they swim with sharks; Meghan discovers the real danger isn't in the water; while drinking shots, Shannon, Vicki and Tamra take a few shots at Heather and Meghan's friendship.
Vicki and Shannon discuss the details of David's affair; an excursion lands the women in deep water; Tamra sparks a controversy over "girl code" and "pot stirring"; Meghan has a surprise in store for the woman at their final dinner.
Shannon and David must discipline their children; Vicki learns that Brooks has made a life-altering decision; Tamra's psychic makes a shocking claim.
Meghan, Heather, Tamra and Shannon go to NASCAR; Vicki has a birthday getaway with Brooks; Shannon tries to put on a happy face; Heather throws a luncheon at her home.
Upset with Meghan's queries about Brooks' cancer treatment, Vicki storms off and brings Heather's luncheon to an end; Shannon visits Dr. Moon to deal with pent-up resentment; Tamra hosts a sex party, where Vicki confronts Meghan face to face.
Vicki's attack on Meghan leaves the women in disbelief; Shannon's children cook up a plan to improve their parents' relationship; Tamra admits to Eddie she's been giving financial assistance to her son; Vicki pays a visit to Briana in Oklahoma.
When Shannon throws an Aries-themed party, Brooks confronts Meghan about her persistence in digging into his past; Brooks makes an offhand comment that throws Tamra into a rage.
Brooks and Vicki leave Shannon's party early, leaving the others to question his behavior; Heather and Terry disagree over a design for the new house; Tamra shows her son, Ryan, his new Orange County home; Shannon questions her friendship with Vicki.
Heather's E-Vine launch takes a turn for the worse when Terry botches the rehearsal; Meghan hosts a viewing party to celebrate Heather's big night, during which everyone is stunned by a new revelation about Brooks.
Vicki's daughter, Briana, meets Tamra for lunch and imparts shocking information about Brooks; Shannon confides in Heather and Tamra; the women prepare for Tamra's baptism in unconventional ways.
The women come together to witness Tamra's baptism; Vicki is besieged by questions about Brooks' cancer; Shannon learns Vicki has committed the ultimate betrayal.
The housewives gather on the couch to rehash the past year; Meghan clashes with Vicki over comments about stepmothers; Tamra discusses the family drama she has kept secret for the past year; Vicki shares funny memories of her late mother.
The women reminisce about season 10; Shannon faces scrutiny over her marriage and David's affair; Heather gets heated over Vicki's betrayal of Tamra; Jim Edmonds is grilled about his marriage to Meghan; Briana shares her opinion of Brooks.
The women share their doubts about Brooks' cancer; Shannon provides details regarding the validity of the PET-CT scan; Tamra and Heather discuss the possibility of blackmail; the women react to Andy Cohen's interview with Brooks.
Andy Cohen interviews Brooks Ayers about the allegations regarding his health.