The crew decides to let loose in an all-out mullet extravaganza, the debauchery continues much to the chagrin of Paige and Amanda, Hannah and Luke reconcile the real war begins when Kyle calls a house meeting.
While the cold war between Luke and Hannah shows no signs of warming, Lindsay wonders if she is actually the priority in her relationship with Stephen the housemates plan a family dinner to get back on track, but it leaves the house divided.
Carl hosts a reception for his mom's virtual wedding Danielle throws a roller-skating party the housemates want to throw Kyle a birthday party.
Kyle and Amanda turn the house into a petting zoo for Kyle's birthday Paige laments that friend Hannah has fallen under Luke's spell Carl invites his new fling to the house a spat between Jules and Jordan escalates into a possible eviction.
Kyle and Amanda's mothers visit for the weekend and the boys of "Summer House" behave badly Jordan stuns Jules Luke shocks the house with his relationship status Carl still can't make things right with Lindsay.
Kyle surprises Amanda with a shocking answer to a simple question Luke revs up his courtship of Hannah with a motorcycle ride as Jules tries to break through a sexual roadblock Carl and Lindsay try to move forward with new flings of their own.
As Lindsay and Carl try to fix what's left of their friendship, Luke and Hannah's continuous flirtation leads to their first date going to new heights it's a house divided for girls' and guys' night.
Hannah invites her old buddy Jordan for the weekend and the housemates are surprised to learn that he has a romantic history with somebody in the house when Hannah gets news about Armand, it helps her make a decision about Luke.
The yearly Fourth of July bash is usually a high point for Kyle and his trusty mullet wig, but things are so rocky with Amanda that the only love he may get is from Carl Lindsay gives Hannah's friend Armand the third degree.
As the house gears up for its Fourth of July party, Jules wants to be friends with Paige, while Luke wants to be intimate with Hannah Carl and Lindsay's first date is a full-blown disaster Amanda slams the door in Kyle's face, setting him off.
With house parents Kyle and Amanda away at a family wedding, the "kids" are ready to run wild Lindsay's friend, Danielle, joins the party Luke pulls out all the stops to court Hannah even though she's looking for a commitment from another guy.
Danielle confronts Jordan about their tension and possibly uncovers a secret Lindsay confides in Danielle about another scandalous rumor the housemates celebrate Kyle's 36th birthday at a Monte Carlo night.
Carl complains to Lindsay about Paige Lindsay's advice is overheard, setting off a chain reaction among the women in the house as Kyle prepares to ask Amanda to take their relationship to the next level, another cheating rumor surfaces.
The housemates throw a Christmas in July party and exchange secret Santa gifts Kyle has a special present for Amanda Hannah invites her British beau to the party Carl vies for Paige's attention, but she ignores his advances, and he goes too far.
Kyle changes 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 the housemates head to a swanky St. Barth's party in the Hamptons.
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.
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.
Fireworks continue as the party winds down after Danielle and Jordan's tryst, he sets his sights on Paige Lindsay reconnects with Everett Kyle and Amanda work together on their new start-up the women tell Danielle about Jordan's true feelings.
Tensions come to a head during a trip to the beach Kyle and Amanda discuss moving in together Carl struggles with meeting his sales quota the housemates prepare for their annual Fourth of July party Jordan flirts with both Danielle and Lindsay.
The housemates return to the Hamptons with several new friends in tow unresolved issues between Kyle, Lindsay and Danielle quickly spread through the house Carl vows to focus on his work and never hook up with a summer share housemate again.