The Real Housewives of Orange County - Season 12 (2017)

Shannon takes Sophie out for a driving lesson; Kelly seeks to improve her love life from the inside out; Lydia's mother throws a birthday party for her grandson; Tamra hopes to break the cycle of parental alienation and divorce in her family.

Tamra and Shannon come face to face; Lydia's family takes a vacation full of uncomfortable conversations; Vicki meddles in her son's love life; Peggy invites her friends to the unveiling of her Lamborghini.

Vicki tries to balance her life alongside her relationship with Steve. Lydia plans a launch party for her new magazine. Tamra organizes a sit down for Kelly and Shannon. Meghan hosts a Sip-N-See for baby Aspen where all of the ladies will finally be in the same place for the first time in months.

Lydia is hopeful everyone can get along for her magazine's launch party. Tamra struggles with her broken family and her mom's poor communication skills. Lydia is hopeful Vicki and Tamra can agree to meet and find peace, but when Tamra thinks Peggy is overstepping, things end up not so noble at the Nobleman launch party.

Vicki gets green with envy when she learns that Kelly is planning on celebrating St. Patrick's Day with Shannon and Meghan. Peggy learns that something got lost in translation between her and Tamra. Lydia ponders if her son's prophecy will come true as she competes in a Spartan Race. Meghan hopes eyes will be a smilin' upon Shannon and Kelly as they engage in a heavy pour of whiskey and whimsy.

Kelly suspects her new pal Shannon of being up to her old tricks and confides in Meghan. Meghan puts her detective hat back on to investigate Vicki's issues with Shannon and Tamra. Vicki's looking to move forward with her new love, while Peggy takes her daughter to New York. The ladies attend a Drag Bingo event, where Lydia faces a moral dilemma and old arguments spark anew.

Meghan is still reeling from Kelly's attack at Drag King Bingo. Lydia tries to play mediator but is unable to stay impartial. Tamra gets an unexpected phone call that leaves her wondering if there is still hope for her and Vicki. Peggy prepares to send her daughters off to college.

As rumors swirl around Orange County following Vicki's birthday party, Tamra catches wind of what transpired about Eddie and is livid. The "Friendship Whisperer" Lydia is even perplexed by Vicki's motives and is nervous for all the women to converge at Kelly's beach volleyball party. Kelly is having a breast reduction and decides to have a "Boobs Voyage Party" with all the women except her former bestie, Meghan.

Kelly goes into her breast reduction surgery with the sentimental support of her husband Michael. Tamra shares with Meghan her concern over Shannon's recent behavior. Vicki and Shannon visit Kelly while she recovers at home.

Lydia throws Doug a party and invites all the ladies despite her hurt feelings over being left out of Shannon's dinner. Peggy is infuriated when David questions Diko about her health.

Vicki and Tamra finally come face-to-face to see if there is any hope of redeeming their broken friendship. Lydia discovers the joys of when the rich get richer. Kelly's dad comes to town and she discovers the parallels between her parent's dysfunctional relationship and her own.

While Vicki visits her cardiologist to check up on her broken heart, Shanon and Peggy are still simmering about the cancer questioning that took place with their husbands. Lydia and Doug plan a Nobleman Iceland trip and Doug encourages Lydia to invite her friends at Meghan's dinner party with her psychic.

The ladies of Orange County are ready to explore everything in Iceland from hiking a glacier to sampling the exotic cuisine. While Tamra and Vicki seem to be reconnecting, Lydia and Tamra hit a bump in their friendship. After a long day of activities the ladies are faced with a shocking medical emergency.

Vicki's health scare continues and brings out a side of Peggy that shocks the ladies. Later, a broken friendship might finally be on the path to mending, while a drunken night causes fractures in another.

After being hurt by Kelly's words, Peggy reveals a secret video to Lydia. Meanwhile, the rest of the ladies whoop it up at a Viking dinner where Tamra and Vicki continue to get along, much to the dismay of Shannon. When Peggy finally arrives at the dinner, her preemptive strike on Meghan thoroughly backfires. Once everyone returns to the OC, Shannon discovers the nature of her unbalanced behavior, but also finds her marriage on thin ice.

Vicki surprises her son Michael with a new role at Coto Financial, while Kelly complains to her mother that she's finally at a breaking point in her marriage. Tamra fulfills her greatest wish of attending her estranged daughter's high school graduation. The ladies celebrate the launch of Meghan's new candle line and Peggy finally comes face-to-face with all the women after her sudden departure in Iceland.

The First Ladies of Bravo are reunited and Lydia is in the hot seat and taken to task for outspoken opinions and actions. Vicki gives an update on her relationship with Steve, while Kelly and Shannon open up about the state of their marriages.

The reunion continues with Kelly and Meghan reviving their text message feud. Peggy airs her grievances to Shannon, and an unexpected turn of events leaves everyone in state of total shock.