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.
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.
Jordan finally meets a woman he'd bring home to mother Kyle's L.A. buddies, Stassi, Beau, Katie, and Tom, pay a visit Stassi tries to help Lindsay see she deserves better from men Carl and Paige argue over who misled whom.
Carl's mother comes to the summer house and delights Paige Hannah takes the next step with British Dave Lindsay goes on a date with Peyman Jordan tells his housemates what he's been hiding Amanda and Kyle move on from the cheating scandal.
Lindsay confronts Kyle about the shocking rumor Kyle tells Amanda the real story Carl's mother comes to town to surprise him after Amanda ignores Kyle all week, he waits outside of her office desperate to confront her.
Thomas rises to the challenge of being a single father Shep continues to be Charleston's perennial bachelor and has a new wingman, Austen Cameran is convinced she knows the woman who can reel Shep in Landon is back with a new boyfriend.
Kathryn appreciates that Thomas finally had her back JD and Whitney stage an intervention to air their concerns over Thomas' erratic behavior the gang gets together at the second annual Founder's Ball, where simmering tensions come to a boil.
Thomas wants to prove that Kathryn and the children should not be overlooked Patricia takes Landon under her wing and shows her how to make Shep swoon Thomas hosts a dinner party during which a toast drives the gang apart.