Vicki is finalising her divorce and has a new man in her life, Alexis lands a job as a news correspondent, Tamra and Gretchen bury the hatchet, and former actress Heather Dubrow becomes OC's newest housewife.

At Vicki's tension-filled dinner party, Peggy and Alexis reach a boiling point, and Peggy decides to close the chapter on her friendship with Alexis and the other women. Gretchen poses for a nude photo shoot for a charitable cause, while OC's newest housewife, Heather, has it all and isn't afraid to let everyone know it.

Tamra's budding friendship with Gretchen affects Vicki; Alexis and Heather try to make amends over lunch; Vicki and her daughter have a deep conversation about Vicki's new boyfriend; and Slade tries to launch a new career as a comic.

Tamra tries to convince Vicki that her friendship with Gretchen won't overshadow their bond, while on the other side of town, Alexis and Heather meet for a doomed lunch to try and work out their differences. Vicki and her daughter Briana have a heart-to-heart about Vicki's new boyfriend.

Heather tells Tamra that she and Vicki were the butt of Slade's jokes in his insulting comedy routine, and Tamra doesn't think it's funny at all. When Tamra tells Vicki about Slade's comedy routine, she feels insulted, but is distracted by her daughter Briana's upcoming thyroid surgery, which could reveal if she has cancer.

The Bunco Party takes an uncomfortable turn when Slade and some of the O.C. men, invited by Tamra, join the party. Confronted immediately about the insulting things he said about Vicki in his comedy routine, Slade aggressively defends himself.

A nervous Alexis undergoes sinus surgery, where her plastic surgeon additionally removes a bump from her nose. Meanwhile, Vicki is distraught as Briana's thyroid surgery went worse than expected. Tamra visits her doctor and decides to have her breast implants removed.

Tamra, Gretchen and Heather compete in a charity Mud Run, Alexis has her nose cast removed, and Vicki gets answers about Briana's health.

Heather takes the girls out for a night of bowling and champagne, Alexis continues to work at the news station, against the wishes of Jim, and Tamra and Vicki romantic relationships continue to grow.

Alexis plans a camping trip near Santa Barbara, but pulls out. Gretchen skips the trip due to her Pussycat Dolls performance, and Tamra recovers at home from her surgery.

Heather goes for an audition but is torn about being a working actress and raising four children simultaneously. Alexis is set to hire a coach to help her dreams of being a television host.

In Las Vegas, and in front of the other housewives, Gretchen performs with the Pussycat Dolls. In spite of Jim's objections, Alexis continues to follow her career path, while Vicki treats Briana and Ryan to dinner.

Tamra and Vicki host a formal wine party where Vicki announces Briana's big news, and Gretchen talks with Tamra over her concerns of ever marrying Slade.

Slade's engagement ring shopping plans; Alexis throws a birthday party for her twins; Tamra gets a tattoo removed; Vicki and Briana fight.

Brooks supports Vicki after her huge argument with Briana. Heather decides to take Terry's surname. Gretchen and Slade seek counselling and Alexis attempts to patch things up with Tamra.

The ladies journey into the rainforest of Costa Rica. They scream with excitement as they zip-line through the jungle canopy, while the changing nature of their friendships has them screaming at each other.

The tension in Costa Rica continues, forcing Alexis to leave early after the group gang up on her and the remaining ladies go white water rafting, with the experience resulting in Vicki having an emotional breakdown.

Alexis reports on-location for the news; Gretchen discovers Slade's plan to propose leading to a confrontation; Eddie surprises Tamra with a surprise romantic getaway.

Heather celebrates her new last name with a fabulous party; Vicki flaunts an expensive gift from Brooks, which exacerbates the tension between her and Briana.

Drama continues at Heather's party; Sarah acts strangely; Tamra and Gretchen commemorate their new friendship with a gift; Jim confronts Terry about calling Alexis phony; Vicki and Tamra fight.

Alexis demands an apology for being called phony; Gretchen accuses Vicki of hypocrisy regarding her relationship with Brooks.

Brooks gives the women a piece of his mind; when Briana joins the group, new questions are raised about Vicki's fidelity and Brooks' motives.

Never-aired footage from season seven includes a double date with Vicki, Brooks, Gretchen and Slade; reunion showdowns; Heather and Alexis pursue their dream careers.