Tamra and Jenn try to find common ground between their men; Gina reflects on her ex-husband's new engagement; Shannon is rocked by a bombshell article about the lawsuit; Heather accompanies Terry to get rhinoplasty.

Tamra reveals more surprising information about Ryan, leaving Jenn to question her friendship with Tamra once again; Emily and Heather discuss body image; Shannon hosts a tea party to reveal she's taking almost everyone on a trip to London.

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Shannon and Vicki head to St. Louis for their live show tour; Heather and Alexis attend the GLAAD Awards; Tamra and Katie's daughters bond over similar childhood experiences; Jenn hosts a poolside party.

Gina hosts a circus party to get the group to move on from the disastrous end to their Mexico trip; Tamra and Heather's heated argument results in them ending their friendship.

At Shannon's 70's-themed party, disco fever takes on a whole new meaning when Shannon gets into a heated argument with Kelly about her rumor-filled past. While Vicki juggles work, babysitting her grandsons and nursing Briana back to health, she still finds time to "whoop it up" with the ladies, at least the ones who are speaking to her. Heather confronts Terry about his lazy parenting after he schedules a work trip for Mother's Day. With Jimmy out-of-town again, Meghan looks for support from her friends during her IVF treatments. Tamra tries to help Kelly mend fences, but winds up stirring the pot instead.

Emily throws a pool party, and Tamra brings a surprise guest; Gina works through personal issues with her ex; Heather and Emily make peace; Shannon discovers that Heather may be discussing her relationship issues with John Janssen.

Heather throws a party to launch her HD Network, but tensions arise when Emily reveals an issue from the past; Jenn introduces Ryan to her mother; Tamra plans a trip to Mexico.

The trip continues as the ladies head to the Mexican jungle; Heather keeps herself in the hot seat after offending Emily; Shannon finally opens up to the group about her relationship with John; Vicki's surprise arrival turns sour.

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Jenn and Tamra co-host a party where the ladies dress as each other. Tamra pushes Eddie to figure out his next business venture. Heather informs Gina that Shannon is talking about Gina’s relationship. Vicki brings a keg to the party, kicking off a salacious game night. Shannon confronts Heather about revealing too much about her relationship, but fingers get pointed elsewhere, leading to an abrupt end to the party.

The ladies enjoy their final days in Mexico and travel to Tulum; Jennifer questions all of her relationships and hopes that a shaman can bring her clarity; Heather feels alienated by the group and her frustration comes to a boiling point.

Tamra tries to prove that Jennifer's relationship is not what it seems; Emily questions Heather's true feelings about the group; things get heated when Gina contemplates her future on the show after revisiting Shannon's comment about her family.

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Shannon is doing her best to move forward as she faces the consequences from her DUI; Emily deals with a new gym obsession; relationships are put to the test as both Giana and Jenn explore new living arrangements with their partners.

Tamra, Vicki, Heather and Kelly travel to Glamis to celebrate Eddie's birthday. While the trip is supposed to be down and dirty fun, Tamra and Heather are still wary of Kelly's filthy mouth. After a long RV ride down, the ladies finally get some fresh air and see what the motor sports mecca has to offer. The next day, the ladies set out to explore the dunes, leading to a ride they will never forget. Meanwhile back in Orange County, lives are forever changed as Meghan receives the results from her pregnancy test and Shannon's holistic home has finally sold, leaving the Beador's two weeks to move out.

The ladies jet off to Ireland to explore Meghan's heritage and try their luck of the Irish. On a pub crawl, an over indulgence of spirits leads to a sobering exchange of words between Tamra and Kelly, ultimately pushing Tamra over the edge. With Kelly on the outs, the rest of the ladies try to salvage their first day in Ireland by enjoying a traditional Irish Hooley Night.

The reunion concludes with the ladies recounting their traumatic experience in Glamis. Old wounds are opened as Meghan finds herself on the defensive for her lack of sympathy towards Vicki after the accident. When the ugly drama of Ireland is discussed, emotions run high and Shannon is driven to her breaking point.

Elizabeth plans a getaway trip to Lake Arrowhead for the ladies, but not everyone is able to make it because of health concerns. On her continued journey to sobriety, Brauwnyn struggles to find her new normal amongst the group and in her marriage. The women enjoy a day on the lake before having a controversial discussion on the Black Lives Matter movement and racial inequality in America.

With tensions lingering between Gina and Jenn, the ladies get their aggressions out in a flag football match; Shannon grapples with the fact that Alexis seems to be taking over everything that was once hers; Gina follows through on a tough decision.

Shannon's lawsuit takes a turn as she deals with the aftermath of the video news; Katie wants Heather to finally hear her truth, causing an upheaval in her friendship with Gina when a new rumour comes to light about Gina's career.

Jenn and Tamra put their issues to rest and plan a triple date. Eddie confronts Ryan about all the rumors. As Heather nears the finish line with her L.A. penthouse, she ventures into new territory with a unique business venture and a surprising offer. Shannon strategizes how to handle discussions of her romantic relationship. Emily and Shane work through parenting issues. Gina brushes up on her real estate skills.

They may live in the lap of luxury, but life isn't always perfect for the women who reside in one of the wealthiest enclaves of the U.S.

After Katie shares controversial information about Heather, the two come head-to-head at Katie's golf event; Jenn is upset with Emily for her comments about her financial woes.