The housemates return to the Hamptons with several new friends in tow. But before long, there’s trouble in paradise. Unresolved issues between Kyle, Lindsay and Danielle quickly spread through the house, leading their new housemates to question their decisions to join the summer share. Meanwhile, Carl vows to focus on his work and never hook up with a summer share housemate again.
Fireworks continue as the 4th of July party winds down. Danielle gets a taste of Jordan, but after their tryst, he sets his eyes on Paige. Lindsay reconnects with Everett. Kyle and Amanda work together on their new startup. At Girls Night, the ladies break the news of Jordan’s true feelings to Danielle.
Danielle forgives Jordan, who continues to wreak havoc in the house; Kyle woos Amanda; the housemates visit a vineyard; Hannah attends her grandfather's birthday party; Carl and Paige's flirtation leads him to violate his cardinal rule.
Jordan continues to offend his housemates; Paige isn't sure Carl checks off all her boxes; during a fight, Amanda admits she has cold feet about moving in with Kyle, and she issues an ultimatum.
Kyle forges a new path for himself and Amanda by finally making changes to his behavior. Carl and Paige go on a date in the city, but Paige still isn’t sure if Carl is marriage material. Hannah confronts Lindsay about her backhanded compliments regarding her femininity. The house heads to a swanky St. Barth’s Party in the Hamptons and the girls flirt it up!
The house throws a Christmas in July party and exchanges secret Santa gifts, but Kyle has a special present for Amanda. Hannah invites her British beau to the party and he brings a friend for Paige, but Danielle’s the one who makes the Christmas connection. Carl vies for Paige’s attention but she ignores his advances, and he goes one step too far.
During the Christmas in July Party, Carl laments to Lindsay about his frustrations with Paige. However, Lindsay’s advice is overheard, setting off a chain reaction among the girls in the house. As Kyle prepares to ask Amanda to take their relationship to the next level, another cheating rumor surfaces.
While Kyle is at his family reunion, Amanda plays single with Paige and Hannah.
Danielle confronts Jordan about their tension and possibly uncovers a secret.
Lindsay confides in Danielle about another scandalous rumor, only for Danielle to end up spilling the tea to Paige.
Amanda, Kyle and their housemates celebrate Kyle’s 36th birthday at a Monte Carlo night.
Lindsay confronts Kyle about the shocking rumor and he subsequently tells Amanda the real story. Meanwhile, Carl’s mom comes to town to surprise him. The housemates continue to wonder about what secret Jordan may be hiding. After Amanda ignores Kyle all week, he desperately waits outside of her office to confront her.
Carl’s mom comes to the summer house and delights Paige, and Hannah finally takes the next step with British Dave. In an effort to move on from Everett, Lindsay goes on a date with Peyman. Meanwhile, Jordan finally tells his housemates what he’s been hiding. Amanda and Kyle move on from the cheating scandal until Amanda’s parents make her rethink her decision to stay with Kyle.
Jordan finally meets a girl he’d bring home to mom and Kyle is unimpressed when Paige finally sleeps in Carl’s bed without Carl. Additionally, Kyle’s coupled-up LA buds Stassi, Beau, Katie, and Tom, pay the house a visit and Stassi tries to help Lindsay see she deserves better from men. The houseguests witness tension coming to a fiery head between Carl and Paige, as they argue over who misled whom.
The Vanderpumps continue their visit at the Summer House and become bystanders in a house-wide divide when Kyle accuses Paige of leading Carl on… AGAIN.
Hannah tears into Jordan about his lies.
Carl brings a date to the house to spite Paige, and Tom has an emergency requiring a trip to the hospital.
When Kyle reveals he’s ready to propose to Amanda, Stassi cautions not to proceed in haste.
It's the last weekend at the house, and the crew gets together for one more epic "death of summer" party; Carl gets closer to Kristen; Paige embraces being single; Kyle asks for Amanda's father's blessing to propose but gets a lukewarm response.