The Real Housewives of Orange County, Heat Waves and Hot Flashes

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.

In the wake of Vicki repairing her friendship with Tamra, Vicki must face one last hurtle and apologize to Eddie. Later, Kelly is stunned to learn that Vicki set up her ex-husband Michael and confronts her over it.

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.

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.

The ladies are surprised to learn how the poker night ended, leaving Gina and Emily at odds while Shannon gets emotional as she goes to court as part of her divorce.

Hijinks ensue when Vicki decides to celebrate her birthday with a ladies' golf outing. Later, 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.

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 throws an Italian themed party, complete with a cooking lesson, where the ladies continue to think Gina is being too flippant about her divorce.

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.

Kelly stuns Shannon when she tells her Emily and Gina feel boxed out by her. At a family gathering, Vicki is shocked to hear the younger generation isn't interested in marriage or having children.

When the OC ladies travel to Jamaica on a girls' trip, the overwhelming heat gets to all of them. After some fun and games on bamboo rafts and rope swings, tension erupts between Shannon and Tamra.

During dinner in Jamaica, tensions rise when Gina confronts Shannon about not being a good friend to Tamra during Eddie's health issues.

Shannon continues to isolate herself from the rest of the ladies. Later, Vicki coaxes Shannon to rejoin the group for a beachside dinner, where Shannon makes amends with only a few of the women at the table.

Upon their return from Jamaica, Vicki and Shannon proceed with dueling plastic surgeries. Gina gets herself in hot water with Tamra.

The conflict between Tamra and Gina continues at Emily's Turkish coffee cup reader gathering. When Kelly helps Gina move into her casita, she questions if Shannon may be manipulating the Tamra-Gina rift.

Emily plans a Femme Fatale party for the ladies, as her mother, Susan, visits Orange County for the first time in five years. Tamra and Gina try to hash out their issues.

The reunion begins with the 'Tres Amigas,' rehashing their whirlwind trip to Mexico, which sparks some unexpected resentment from Gina. And sparks fly when Vicki and Kelly go head-to-head.

Shannon's emotional year filled with highs and lows is discussed as the women chime in about her divorce. Things quickly get messy when the group tries to figure out the game of telephone and who said what first about Emily's marriage.

The ladies relive the humidity, shenanigans and tension from their Jamaica trip, then take a deeper dive into Tamra and Shannon's friendship, as well as what caused Shannon's meltdown in Jamaica.