After the surprising reconciliation between Vicki, Tamra and Shannon at last season's reunion, the ladies are working to rebuild their friendship and regain each other's trust. Tamra has moved into a new home, and as part of their divorces, both Shannon and Kelly have downsized, while also adjusting to life as single mothers. Vicki, who has marriage on the brain, is now cohabitating with her boyfriend Steve, though he is in no rush to pop the question. Tamra goes on a hike with her estranged friend Emily to try to clear the air, but at home is dealing with Eddie's ...

In the wake of Vicki repairing her friendship with Tamra, Vicki must face one last hurtle and apologize to Eddie. Tamra teaches an exercise class and introduces her new friend Gina, a recent transplant from Long Island, to the ladies. Emily and husband Shane celebrate their ninth anniversary. Shannon travels for the first time as a single mom to Mexico with her daughters. Kelly is stunned to learn that Vicki and Steve set up her ex-husband Michael and confronts Vicki over the betrayal.

Kelly's argument with Vicki continues, coming to an angry, tearful end. Tamra and Vicki fly to Mexico for a girls weekend to help break Shannon out of her shell. While Tamra and Shannon embrace a wild night, Vicki tries to reign herself in at Andales, after promising Steve she won't do anything to embarrass him. But a night of dancing on the bars, ends with a real injury and the trio opening up about their real vulnerabilities. Back in OC, Kelly gets emotional support from her sage 11 year-old daughter, Jolie, while Emily and Gina bond over an exercise group, Stroller...

While Shannon gets her daughter's opinion on her new business venture, Tamra visits the doctor and finds out her broken foot may require surgery. Gina's mom visits from Long Island, while Emily's mother-in-law Pary gives advice on how to motivate Shane. Vicki and Kelly have a tense meeting over coffee, where only one housewife walks away satisfied. At a group dinner, Shannon and Vicki meet Emily and Gina for the first time. Vicki gets raked over the coals by the ladies for secretly going on double-dates with Kelly's ex-husband.

New divorcees Shannon and Kelly bond on a night on the town, making Tamra feel left out, as she tends to her husband Eddie, who needs a second heart procedure. Vicki pushes her son Michael to marry his girlfriend. Shannon makes progress on her new business venture with QVC. Emily hosts a poker party, where her mother-in-law Pary bonds with an emotional Kelly and Gina's loud mouth irritates Emily's husband, Shane.

The ladies are surprised to learn how the poker night ended, leaving Gina and Emily at odds. Vicki travels to LA to record radio commercials for Coto Financial and ends up embarrassing her son Michael in the process. Shannon gets emotional as she goes to court as part of her divorce. Her good friend Tamra surprises Shannon with the gift of a matchmaker, while Kelly dates the "milkman." After Emily leaves a happy hour early, the other women start to speculate about her marriage.

Hijinks ensue when Vicki decides to celebrate her birthday with a ladies' golf outing. Tamra and Eddie double date with Emily and her husband, in order to get to know Shane. Kelly tries to teach her daughter Jolie the value of money and the two volunteer at a homeless shelter. A rumor about Emily's marriage sparks an unexpected confrontation between Tamra and Shannon.

Vicki's golf party concludes as Tamra hounds Steve to propose to Vicki. With cracks continuing to appear in Tamra and Shannon's friendship, the ladies finally sit down for an emotional heart-to-heart. Meanwhile, Gina makes a confession about her marriage. Tamra throws Eddie a 45th birthday party. At the party, Kelly's plan to confront Steve goes awry and she ends up arguing with Emily's husband Shane.

Tamra's birthday party for Eddie ends in shambles after an explosive comment is made. Shannon gets set up by a matchmaker and goes on her first date in over twenty years. Vicki fights back about the rumors about her relationship with Steve. While the women react to Gina's marital news, Emily and Kelly try to work out their issues.

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While Tamra flies to Philadelphia to support Shannon, Kelly hosts the rest of the ladies for a screening party for Shannon's debut on QVC.

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A look at five families living in a protected Southern California enclave, and the real-life housewives who reside in one of the wealthiest planned communities in the country.