Vicki's mother's passing has sent shock waves throughout the OC, causing the women all to take a deeper look at their family lives. While Vicki travels to Chicago to mourn, Tamra heads north to celebrate the birth of her granddaughter. Meanwhile, Shannon continues to heal her marriage with David. Meghan tries to create a lasting memory for her stepdaughter Hayley.

The episode was rated 7.23 from 70 votes.

The Orange County vault is opened with never-before-seen footage from season ten including Shannon's unique ladies lunch, Vicki's night out and Heather's teachable moment to Meghan about the finer points of Botox. In Tahiti, the women experience a wild ride, and back in Orange County, Heather proves the devil is in the details when building a mega home. Plus, secrets are revealed with more reunion footage addressing Vicki's scandalous history with Brooks.

The episode was rated 7.29 from 42 votes.

The day after Tamra's sex party, the ladies are still in disbelief over Vicki's attack on Meghan. Meanwhile, Shannon's kids cook up a plan to improve their parent's troubled relationship. Tamra and Eddie's date night turns sour when she comes clean about financially helping out her son. Plus, Vicki leaves the OC for a visit with Briana in Oklahoma, but underlying tensions about Brooks brings the trip to an explosive end.

The episode was rated 7.29 from 80 votes.

Vicki enlists the powers of a medium to try and communicate with her mother. Shannon discovers that to lose physical weight, she has to do more than just exercise, she must deal with the weight of her emotions too. Meghan tries to teach her step daughter responsibility but learns a lesson about parenting instead. While Tamra and Eddie struggle to work together at the gym, Heather is eager to start a new project with Terry. All the ladies come together for a fun night of bowling and a surprise announcement.

The episode was rated 7.30 from 70 votes.

Vicki receives a telephone call that changes everything. Shannon offers an olive branch to Meghan.

The episode was rated 7.30 from 69 votes.

A trip to Napa concludes with tensions at a high. Vicki and Brooks consider some unconventional cancer treatments, Meghan puts the final touches on her first OC charity event while Heather faces the harsh reality of going over budget on her dream home. Shannon receives some shocking news and unresolved issues between her and Meghan become the topic of the ladies' scrutiny.

The episode was rated 7.32 from 69 votes.

The reunion concludes as the women and Briana confront Vicki head on with their doubts about Brooks' cancer. Shannon provides shocking details regarding the validity of the PET/CT Scan, Tamra and Heather confront Vicki about the possibility of being blackmailed, and all of the ladies have strong reactions to Andy's taped interview with Brooks. Then, Vicki makes a stunning revelation that has everyone doubting what they've heard.

The episode was rated 7.38 from 88 votes.

On part two of the reunion, the ladies get wild and crazy looking back at the best OMG moments of season 10. While Shannon faces scrutiny about her marriage and David's affair, tensions rise when Heather gets heated about Vicki's betrayal of Tamra. Jim Edmonds also joins the ladies on the couch and is put in the hot seat about his marriage to Meghan. Briana makes an appearance and is no holds barred when it comes to her opinions about Brooks.

The episode was rated 7.39 from 85 votes.

Heather and the ladies travel to Napa to celebrate the launch of her new sparkling wine Collette. OC transplant Meghan is excited for her first trip to wine country, but is also apprehensive after her recent run-in with Shannon. Shannon continues to struggle with her emotions regarding her husband David's affair. Also, Tamra reveals her newfound relationship with the lord while also trying to draw some much needed attention to her new boobs.

The episode was rated 7.43 from 65 votes.

Meghan, Heather, Tamra, and Shannon head to NASCAR while Vicki enjoys a birthday getaway with Brooks. Later, Shannon tries to put on a happy face during her birthday dinner with David and her girls. Heather throws a luncheon at her unfinished home, where Meghan confronts the OG of the OC.

The episode was rated 7.46 from 76 votes.

Vicki's daughter visits and delivers shocking information to Tamra over lunch. Also: Shannon confides in Heather and Tamra, thanks to her reconnected relationship with them; and the women prepare for Tamra's baptism in unconventional ways.

The episode was rated 7.48 from 85 votes.

Heather's luncheon ends with a bang as Vicki storms off, upset with Meghan for continually questioning Brooks' cancer treatment. Shannon visits Dr. Moon to help deal with pent up resentment. Tamra hosts a wild "Sex Party" that has Heather covered in blood and Vicki going for blood as she not only confronts Meghan face-to-face, but also goes after Meghan's husband, Jim Edmonds.

The episode was rated 7.55 from 83 votes.

As Shannon seeks to make sense of her friendships, Tamra looks to a higher source to improve her son's troubled relationship. Meanwhile, Heather's Evine launch in Minnesota takes a turn for the worse as Terry botches the rehearsal. After a trip to the doctor with Brooks, Vicki tries to put an end to the cancer debate, but when Meghan hosts a viewing party in celebration of Heather's big night, a new revelation about Brooks has everyone stunned.

The episode was rated 7.58 from 76 votes.

In the season finale, the ladies gather together to witness Tamra's baptism, but with the constant questions and confusion surrounding Brooks' cancer, Vicki is the one who feels crucified. And after an evening of avoidance, Shannon and Vicki come face-to-face when Shannon discovers that Vicki has committed the ultimate betrayal.

The episode was rated 7.58 from 84 votes.

Back in the OC, Shannon and David discover that disciplining their kids is easier said than done. Vicki learns that Brooks has made a life altering decision, to stop chemo and try a radical new approach. Meanwhile, Tamra's psychic makes a shocking claim leaving the ladies in disbelief.

The episode was rated 7.60 from 85 votes.