The Real Housewives of Orange County

In the fourth season premiere of Bravo's "The Real Housewives of Orange County," Tamra Barney, Vicki Gunvalson, Jeana Keough and Lauri Peterson welcome a new housewife to the block, 30-year-old blond bombshell Gretchen Rossi.

Date night turns into fight night when Vicki and her husband Donn find themselves in a sparring match over their marriage and the ladies all go to a Beverly Hills spa for some indulgent pampering.

Tamra and Simon Barney celebrate their ten-year wedding anniversary with a weekend getaway in Napa, and they invite Vicki and Donn to join them. While Tamra and Simon enjoy a romantic weekend of wine tasting, grape-stomping and gourmet dining, Vicki and Donn struggle just to be nice to each other.

Gretchen soothes her worries about her sick fiance in true housewife style - by hosting a burlesque party. Vicki, Jeana and Tara enjoy a girl's night out.

It's the Fourth of July. Vicki is betrayed when Jeana brings her nemesis to lunch, and Gretchen has a sick fiance and bratty teenage daughter to please.

Gretchen gets Jeff's children to visit him in hospital while she hangs out with a friend. When Tamra tells Gretchen off, the fallout is catastrophic.

A day at the races proves to be a backdrop for drama when Vicki and Tamra snub Lynne and Gretchen.

Tensions run high as Gretchen nurses her sick fiance, coming to a head over Tamra's lavish dinner party, where too much tequila leads to an argument.

With Tamra Barney's formal seven-course dinner winding down, Tamra's son Ryan sees an opportunity to make his move on a very drunk Gretchen Rossi, leaving the rest of the ladies to worry and wonder about Gretchen's well-being. The ladies travel to Santa Monica for a trendy shopping day. Over lunch, when Gretchen confides in the women about her finances, it sparks a heated argument between Lynne and Vicki.

Tamra's mother undergoes a facelift and Lynne throws a cocktail party that turns wild when her daughter, Raquel, helps herself to the booze.

With her wild 18-year-old daughter, Alexa, running circles around her, Lynne Curtin seeks her mom's advice about how to be a better parent. Vicki Gunvalson comes to a surprising decision regarding the purchase of the million-dollar yacht she so badly wants, and after two grueling months in the hospital undergoing chemotherapy, Gretchen Rossi's fiance, Jeff, returns home. Later, the housewives blow off some steam with a girls' overnighter in Las Vegas.

It's road trips all over! Tamra reconnects with her father in Iowa, Gretchen goes to Dallas to reunite with old friends and Lynne travels to San Diego.

New year, new love. Jeana has her first date since splitting from Matt and Lynne pushes her daughter to get a job and pay her own way.

Hosted by Bravo programming executive and "Watch What Happens" host Andy Cohen, the ladies of Orange County reunite to dish on all drama and give their side of the story on what really went on after the cameras stopped rolling.

A reunion special of the botoxed, nipped and tucked housewives. Explore their pampered, sensational lives and relive their ups and downs from season four.