Season 17

The reunion concludes with new details about Shannon's relationship with her ex-boyfriend, John Janssen. Emily and Heather clash over Tamra's puppet mastery of Emily. The group has a fiery debate over what really went down at BravoCon, leaving Heather at odds with the rest of the ladies.

The ladies of Orange County reconvene as they rehash season 17. 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.

After a volatile end to their trip to Mexico, Heather finds herself on an island and sets out to prove that Tamra is the root cause of everyone's issues. Shannon invites Tamra and Jennifer over and tests her Sitolonic prototype. Gina throws a circus party where Tamra tries to stop Heather from rallying the troops, leading to an explosive end to their friendship.

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. After a debate about social media, Heather feels alienated by the group and her frustration comes to a boiling point when she's accused of calling the group losers.

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 when she gives Jennifer unsolicited advice. Jennifer confronts Tamra about digging for information on her relationship.

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, but when news breaks of Heather's house sale, the ladies have 55 million reasons to be upset.

Taylor hosts a pumpkin-carving party where Gina confronts Shannon for starting rumors about her past indiscretions. The ladies question Heather about recent paparazzi photos and wonder if they were staged. Jenn raises concerns about marrying Ryan. Shannon confides in Tamra about her relationship.

Shannon prepares for a fiesta party while dealing with the aftermath of her relationship issues going public. Shannon and Heather face off about the source of the relationship rumors. Tamra, Jenn and Taylor support Shannon at her party. Emily and Gina attend a fundraiser for the California Innocence Project. Heather looks toward her next chapter after accepting a life-changing house sale offer.

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.

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.

Emily throws a pool party and Tamra brings a surprise guest who wants to clear the details about Jenn and Ryan's past. Gina works through personal issues with her ex. Heather and Emily make peace. After Tamra and Emily exchange stories, Shannon and Tamra have dinner with the OG of the OC, Vicki Gunvalson, where Shannon discovers that Heather may be discussing her relationship issues with John Janssen.

Gina questions her friendship with Heather, as she feels there's a lot left unsettled after Montana. Emily reconnects with her estranged mom. Shannon struggles to find the balance between her business and relationship with John Janssen. Heather throws a dinner party at Nobu, but the fancy ambiance quickly turns tense when Emily and Gina confront Heather about her behavior. Jenn makes a shocking accusation that sends Tamra over the edge.

The adventure continues in Montana when the ladies partake in fly-fishing and white-water rafting. Heather helps Gina deal with pent-up emotion but later feels betrayed and contemplates their friendship moving forward. Back home in the OC, Jenn breaks the news to Ryan that his past - whether true or not - is the talk of the town.

While the ladies take on ranch-hand tasks, Gina warns Heather about Tamra, who reveals a disparaging comment about Heather's career that puts Taylor in the hot seat. Gina and Jenn hash out feelings about infidelity. Shannon and Tamra give their friendship another shot, but Tamra drops a bombshell about Jenn's boyfriend that sends shockwaves through the campsite.

Tamra wants to live the life of a cowgirl and takes the women to a ranch in Montana, where she also hopes to reignite her friendship with Shannon. Tensions arise when Heather learns that her career is being dissected and discussed. Gina makes a point to connect with Jenn. Back in the OC, Emily helps her daughter Annabelle with her aspiring modeling career.

Tamra regrets her behavior toward Shannon, and Jenn urges her to apologize and invite Shannon to the CUT closing party. With her twins' college departure looming, Heather contemplates her next chapter of her life. Gina has a difficult time getting over her issues with infidelity when it comes to forging a friendship with Jenn.

Gina and Emily bond with Jenn and learn about the reality of her complicated relationship. Heather prepares for her twins to leave for college while balancing her friendship with Tamra and Shannon. Shannon and Tamra meet to hash out their issues. When the ladies flock the dock for Gina's flamingo-inspired boat party, Tamra throws her composure overboard.

Tamra Judge is back, but her return to the group proves rocky when she accuses Shannon of ghosting her. Shannon is hurt that Tamra has blasted her in the press. Emily adjusts to being a full-time mom. Heather wants to know where her friendship stands with an MIA Gina. The ladies meet Tamra's friend Jennifer Pedranti, a mom of five children who is the talk of the town. When Jenn holds a yoga event, Tamra and Shannon finally come face to face after over two years.