As the housemates return to the Hamptons for another summer, Lindsay arrives with a big secret that will change the house forever; Jesse feels a spark with new housemate Lexi.

Jesse and Lexi ignore concerns about moving too quickly and their spark grows into a flame; at the first house dinner of the summer, Ciara confronts West about their relationship; Carl summons the courage to speak to Lindsay directly.

Kyle introduces a new friend to the house; Lexi makes her boundaries with Jesse clear; Paige becomes infuriated after Kyle rage texts her about Craig.

Imrul joins the housemates in the Hamptons; Lindsay reveals the gender of her baby with help from Danielle; Paige confronts Kyle about his texts to her and everyone takes sides.

Kyle apologizes to Paige, but underlying tensions continue with Craig; Jesse worries about his blossoming relationship with Lexi; Paige is surprised by Craig ́s concerns about her career.

With Lindsay out of the house for the weekend, Carl invites a girl to the party; Jesse feels the pressures of monogamy; Kyle sits down with Craig to hash out their issues.

Carl gets back in the game with a new girl; Kyle and Craig finally address the elephant in the room; a late-night rendezvous creates drama for the entire house.

Lindsay becomes convinced that Carl was untruthful with her while they were engaged; a shocking revelation threatens to destroy Lexi and Jesse's relationship.

Jesse hosts a dinner for the house; Lindsay confronts Carl about his new love interest with surprising results; Paige's anxiety reaches a breaking point.

Lindsay celebrates her last birthday before motherhood; Jesse and Lexi's relationship starts to cause issues with others in the house; a late night for Kyle threatens to destroy his summer of peace.

Tom Schwartz visits the house for the first annual Snoozefest party; a revelation leaves Lexi feeling betrayed by Jesse; Kyle gets some concerning medical news.

As the first annual Snoozefest continues, more revelations come to light; Carl confesses his crush on a housemate; Lexi and Jesse's confrontation leads to fallout throughout the group.

Some surprising medical news creates questions for Kyle and Amanda; Jesse attempts to repair his relationship with Ciara.

Lindsay hosts a very surprising anniversary celebration; things get tense as Jesse blames issues with Lexi on another housemate.

As summer comes to an end, Lexi and Jesse navigate the awkwardness of their break up; Lindsay faces a new future.

As the Summer House reunion kicks off, West and Ciara unpack their complicated dynamic; Paige reveals new thoughts about her breakup with Craig; and Jesse and Lexi's relationship drama shifts to include another housemate.

The jaw-dropping reunion concludes as Lindsay makes a shocking revelation about her relationship; unexpected tension between Kyle and Amanda surprises the group; and Paige discusses the future of her relationship with Craig.