Raquel's birthday dreams come true when she embarks on a glamping trip with some of her closest friends Lala grows suspicious about Sandoval's interest in Raquel James and Ally attempt to work out their issues following a disastrous beach day.
Sandoval opens up to Schwartz about his romantic problems with Ariana Scheana blames Katie for spreading a sordid rumor about some of their friends Ariana suffers another big loss James plans an epic beach day that takes a turn for the worse.
Back in Los Angeles, Lala celebrates her birthday with an epic party Raquel sets her sights on Oliver after being rejected by Schwartz Tom and Ariana discuss their plans to make embryos together Ally and James witness a suspicious interaction.
Scheana and Brock marry in a lavish ceremony in Cancun James and Katie must sort through their feelings after their exes hook up with one another Lisa attempts to solve the Toms' problems Lala puts Raquel in her place.
Katie and Schwartz celebrate a milestone in their breakup with an extravagant dinner that quickly goes south Scheana erupts on Lala for skipping wedding events to avoid Raquel James must atone for his behavior when his temper gets the best of him.
Raquel cozies up to Peter in an attempt to get over James Lala opens up about the origins of her last relationship James throws Raquel under the bus to Lisa Katie comes face to face with the bar that led to the demise of her marriage.
Katie and Schwartz attempt to maintain a friendship in the wake of their recent divorce James introduces his new girlfriend, Ally, to the rest of the group tensions between Schwartz and Lala bubble over when one of them commits an act of betrayal.
With Stravy's return, the house is abuzz about Lindsay's chaotic relationship Hannah and Danielle take phone relationships to the next level Luke is blindsided by information about Hannah and Des Paige questions her relationship with Perry.
A pub crawl devolves into a serious conflict between the boys, causing Luke to leave the house Lindsay wonders if she made a mistake when she broke up with Stephen Kyle surprises Amanda for their two-year engagement anniversary.
Lindsay and Luke's maybe-not-so-innocent friendship is called into question when Amanda and Paige confront them about the juicy hookup rumor sparks fly between Ciara and Carl the guys corner Luke and demand he account for his behavior.
Kyle tries to make amends with Hannah Lindsay grapples with ending her relationship with Stephen rumors spread like wildfire when Hannah receives an explosive tip from her psychic.
Kyle is enraged to find his housemates have more laid-back plans for their Saturday night Lindsay finally receives a grand gesture from Stephen Carl returns from Pittsburgh to find the house in shambles.
Luke thinks a flirtatious flower delivery will get his relationship with Ciara back on track Stephen attempts to cheer Lindsay up with a romantic birthday dinner Hannah and Amanda's friendship takes a turn Carl receives devastating news.
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.
Lindsay turns the house into a crime scene for her murder mystery-themed birthday Paige is put in an uncomfortable position as tension between Hannah and Amanda escalates over Hannah's involvement with Luke, who is still hung up on an ex.
As Kyle's birthday party comes to an end, Jules wonders if her time at the house is coming to a screeching halt with Hannah distracted by Luke, Paige and Amanda don't hesitate to throw her under the bus.
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.