Kailyn hangs out with Jordan, and Leah preps for the wedding with the help of her sister.
Chanae angles for a pink scooter and gets her braces taken off for the party.
Chelsea re-connects with Adam, Leah and Corey worry about Ali, Jenelle looks for a job, and Kailyn questions her new relationship.
Stephanie gets into hot water with Kelly Cutrone at People's Revolution, Heidi puts her foot down about going to the therapist with Spencer and Audrina has an awkward run-in with Justin.
The house heads to Danny's end-of-summer BBQ with family and friends, and Deena prevents Vinny from smushing.
Single Sammi makes an appearance on the boardwalk, and Ronnie plans to confront The Situation about being fake.
Ketsy and Lawrence try to make their marriage work; Mindi vows to stay strong for Shane; Brandon comes home and he and Crystal deal with some of their problems.
Olivia is resistive when Erin pulls Whitney Eve for an ELLE shoot with actress Ashley Greene and Roxy asks her dad for financial help.
Chelsea is having trouble concentrating on her schoolwork, but agrees to start dating again, and Jenelle's frustration towards her mom leads to a physical argument.
The Situation breaks down and feels like he should leave the house, and Ronnie tries to give him support and encouragement.
Sammi talks about her decision to return to Seaside and confronts The Situation for getting involved in her relationship with Ronnie.
Karissa decides to forgive the absent father of her baby and Mechele wonders if she will ever allow her ex-boyfriend to have a relationship with their daughter.
Heidi surprises Spencer by hiring a party planner for Enzo's birthday, and Brody flirts with Kristin while they go bowling with friends.
Erika performs her first big concert Callie resorts to drunk dialing her ex after she continues falling for taken men.
Lindsey's mom joins the workouts and Lindsey is devastated when her dad lets her down on graduation day.
Gary is devastated that Amber's in jail, Farrah looks at Florida colleges, Maci helps take care of Kyle and Tyler wants to go clubbing.
Daria continues to cheat on her diet and Tammie tries to get to the root of the issue.
