One-Hit Wonderful

Andrea doles out Adderall and teaches the girls The Secret, Tess struts her stuff during LA Fashion Week, and Alexis is arrested for her connection to The Bling Ring.

Everyone heads to Santa Barbara for the big vow renewal, Heidi performs her new song, Spencer compares the celebration to Burning Man, and Brody and Kaitlynn spend the entire weekend tackling gossip and defending their marriage.

The gang gossips about Brody and Kaitlynn's relationship, Brandon struggles with Ashley, Audrina revives her swimwear collection, and we get to meet Justin Bobby's dad.

Brandon reaches out to his father, Heidi and her faith return to the recording studio, the gang celebrates Heidi and Spencer's upcoming vow renewal, and Stephanie tries again to get an apology from Audrina.

Justin and Brandon get closer to their girlfriends, Audrina hangs with another boyfriend of yesteryear, Kaitlynn hosts a gala, and Heidi and Spencer celebrate their anniversary.

Audrina and Mischa grow closer, Brody goes off on Stephanie and the Pratts bond over it, and Justin brings a big surprise to Frankie's Friendsgiving.

Brody and Kaitlynn fight to save their home while the gang parties in Las Vegas, Mischa goes on an audition, Heidi returns to her music, and no one knows that hell is going on with Justin, Stephanie, and Audrina.

Brody releases a music video, Brandon goes on a date, Audrina's friend makes a play for screen time, and Spencer and Heidi throw a crystal party with the world's most expensive open bar.

Brandon throws a pool party for the boys, Bobbyrock performs, and Justin and Stephanie get closer while Brody and Spencer grow further apart.

Stephanie cries over Spencer, Mischa shuts down Perez Hilton's half-assed apology, Brandon wins the award for Most Mature, and Jason Wahler returns to The Hills looking finer than ever.

The Hills Have Sighs has returned! The gang is back together, with spouses, children, new friends, and a lot more Botox. Audrina moves on after her divorce, Stephanie returns from London, and Frank and Meredith are underwhelmed - by the episode, and by remote recording.

Frank and Meredith watch PC make his big screen debut in the film Twelve, which has a notable director, stacked cast, and 3% on Rotten Tomatoes.

Sebastian throws a benefit for a charity no one knew he cared about, Kelli performs, PC moves on from Taylor and tries to mend things with Jessie, and Jessie has her big night with Operation Smile.

Camille goes on a tour of Harvard with a she-devil, Taylor and Cole drift apart, Jessie tries to mother PC who responds by throwing a hotel party, and Frank and Meredith discuss all the things. (For NYC Prep only, skip ahead to 35:58.)

PC parties his way through Fashion Week, Jessie starts an internship, Taylor fangirls out at her first fashion show, and Kelli tells PC what she thinks about his self-proclaimed maturity.

Jessie applies for internships, Kelli continues her quest for stardom, Taylor dances her way toward academic probation, and PC begins a wildly inappropriate apprenticeship with a photographer.

Kelli gears up to work on her singing career, Taylor finally chooses between Sebastian and Cole, Camille goes on a date and becomes a feminist icon, and PC shakes things up at a dinner party.

Kelli spends the holidays at her family's palace, Camille hires someone to clean out her closet, Taylor juggles Sebastian and Cole, Jessie visits a friend in Palm Beach, and PC falls even more in love in Cancun.

Jessie prepares for a charity fashion show, Sebastian brings Kelli cupcakes and then takes Taylor on a date, and PC searches for something more tasteful than casual sex.

Camille gets her SAT scores back, Taylor throws a party, Jessie attempts to make connections in the fashion industry, PC explains privilege and patronizes girls only one year younger than him, and Sebastian nearly makes Frank and Meredith puke.

The boys take David's jet to Las Vegas, host an Elvis fan club on the lawn, move into the pool house, and throw a tribute concert. David tows Brody's car to Arizona, bricks the doorways to the boys' bedrooms, and sells their stuff at a yard sale. Celine Dion, David Hasselhoff, Cheech Marin, Dick Van Dyke, Brooke Shields, and Alan Thicke make appearances. Frank and Meredith give up.

David instructs the household staff not to take care of the boys anymore, so Brody and Spencer hire their own chef and maids.

David kicks back to relax and watch a movie only to discover that the boys have borrowed the film to host a drive-in on the front lawn.

Brandon and Brody throw a wild party at the house and David has a fit. He tells them it's time to grow up, closes their account at Nobu, shuts off their credit cards, and demands they start paying rent. The boys respond by having a bikini car wash in the driveway to raise money.

Kelly works produces a video for DKNY that shoots "street style" around Manhattan, Skinner and Andrew pose as an engaged couple and go cake tasting, and the staff throws Kelly a surprise birthday party at The Carlyle Hotel.