The Real Housewives of Orange County

All change! Vicki finalizes her divorce, puts her house up for sale and hangs out with Brooks. Gretchen and Tamra try to resolve their differences.

At Vicki's tense dinner party, Peggy and Alexis reach a boiling point, and Peggy ends her friendship with Alexis and the other women. Gretchen poses nude for a photo shoot for a charitable cause, while OC's newest housewife, Heather, has it all and isn't afraid to flaunt it. Meanwhile, Vicki and Tamra go on a trip to Catalina with their boyfriends that nearly ends before it begins when Tamra puts Brooks in an embarrassing situation.

New housewife Heather throws a "painting party" to get to know the ladies. Alexis and Vicki make snide remarks to Gretchen and Tamra about their budding friendship, and Alexis envies Heather's perfect life. Gretchen and Slade dig up questionable information about Vicki's new boyfriend that is sure to send shockwaves through the OC.

Heather and Alexis try to bury the hatchet while Slade's stand-up comedy embarrasses Gretchen given his source material is based on her friends!

Heather gossips to Tamra about Slade, stirring tensions with the other women which boil over at Tamra's 80s themed Bunco party (obvs).

Slade and the other guys crash the Bunco party causing uproar, particularly with Vicki. Alexis also comes under fire for her upcoming nose job.

We're off to the hospital as Alexis undergoes nose surgery and Vicki receives Briana's surgery results. Meanwhile, Gretchen prepares for her Vegas debut.

Emotions run high as Vicki finds out more about Briana's health and Tamra drags her heals about finalizing the divorce from Simon.

Tamra and Vicki's love lives take centre stage, while Heather throws a bash that ends in a row between Vicki and Gretchen's friend Sarah.

Alexis and some of the girls escape for a weekend of glamping - will they survive in the wild, let alone with each other?

Heather travels to Hollywood for auditions but questions are asked about her duties as a parent. Gretchen preps for her big show with the Pussycat Dolls.

Gretchen gets through her big performance with the Pussycat Dolls. Back in the OC, a get together leads to Terry insulting Alexis.

A wine party leads to a big announcement from Vicki and a difficult interlude between Briana and Vicki's new love, Brooks.

Who says romance is dead? Heather joins Slade to help choose an engagement ring, while Tamra has Simon's name removed from her wedding finger.

Vicki's rift with Briana threatens to push her over the edge, while Gretchen and Slade attend marriage counseling.

Get set for a tropical adventure! In Costa Rica, it's not just the jungle that's scary as Vicki seems on edge and Alexis gets a reality check.

On another high octane day in Costa Rica, Alexis flees the criticism of the others for the safety of the OC, while Vicki breaks down.

Alexis faces her biggest test yet: reporting on-location for her final Fox 5 news segment, while Vicki pushes Brooks to fix his teeth. Meanwhile, Gretchen accidentally uncovers Slade's plan to propose, leading to a confrontation that puts them over the edge.

Heather hosts a fabulous party to celebrate her new surname, but when Alexis shows up with her friend Sarah the temperature rises to boiling point.

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.

The OC ladies conclude the season with a reunion get together of drama and giggles as Alexis demands an apology and Gretchen calls Vicki a hypocrite.

A reunion special. Vicki's relationship becomes a focus and by the end, there are radical shifts in alliances and friendships.

Andy Cohen gathers the top 20 moments from the Real Housewives' reunions. From walk outs, put downs and blow ups, these unforgettable moments make the list.