Season 3 premieres with Whitney at her first real job after graduating college; Lauren and Heidi still not speaking; Heidi playing house with Spencer; and Lauren juggling new responsibilities at Teen Vogue.

Spencer says the paint job is a gift and promises he has some more surprises up his sleeve, including a romantic getaway to Santa Barbara. Meanwhile, Audrina and Justin are hitting it off during their date. Justin admits to having changed, and Audrina seems to think he's lost some of his bad boy qualities since the last time they saw each other. But when she brings Justin home to see the new apartment, he makes a less than perfect impression on Lo and Lauren.

Audrina makes up her mind about Justin; Heidi sees the downside of being engaged.

Spencer goes to Colorado with Heidi to meet her parents.

Heidi and Lauren's feud spreads to their guys when Spencer ends his friendship with Brody, who is dating Lauren again.

Jason gets out of rehab and back into Lauren's life; Heidi gets promoted to events director at Bolthouse.

Audrina and Justin reunite; Lauren and Jason run into Heidi and Spencer at a West Hollywood eatery.

Even though his wedding to Heidi is looming on the horizon, Spencer still hasn't told his family about it. Whitney and Lauren have lots to do for the Teen Vogue event. Jason has a fresh start with a new place and a new girlfriend.

Brody celebrates his birthday in Las Vegas and he invites Lauren and her friends. Meanwhile, Heidi deals with work problems.

Lauren confronts Brody about the sex-tape rumors after having lunch with Jen Bunney.

On the other side of The Hills, Spencer springs surprise dinner reservations on Heidi in hopes of recreating their anniversary celebration that was cut short. When she reminds him that she'll be working all night at the NASCAR event, Spencer swears she never mentioned her plans before. She suggests they have a late-night bite to eat, but he turns her down. When Spencer gives her a hard time about working so much, Heidi suggests he get a job -- maybe then he'll understand her demanding schedule.

Lauren and Whitney are sent to New York, where Whitney makes a presentation to Teen Vogue editor-in-chief Amy Astley and Lauren works with designer Marc Jacobs.

Heidi celebrates her 21st birthday with Spencer, and Lauren and Whitney work a Teen Vogue Young Hollywood event.

Lauren and Whitney go to a star-studded party and run into Heidi, whose feud with Lauren flares up again. Later, Heidi tries to bury the hatchet with Lauren, but they can't see eye to eye. Meanwhile, Audrina is promoted at Epic Records.

Heidi plans her wedding, quickly shooting down Spencer's suggestion that they elope in Cabo San Lucas, Mexico. Meanwhile, Whitney, Audrina and Lauren go out with personal trainer Jarrett.

When Spencer's sister Stephanie visits, she stirs up the feud between Heidi and Lauren. Meanwhile, Justin's wandering eyes and lips get him into trouble with Audrina.

Lauren and Audrina throw a Halloween party, and everyone likes Audrina's new guy, Corey. Meanwhile, Heidi and Spencer seem to be drifting apart.

A celebration for the third-season finale includes coverage of a red-carpet party at L.A.'s Area Nightclub, and a broadcast of the three episodes leading up to the season finale.

A trip to Paris for Lauren and Whitney is marred, when Lauren discovers Brody is seeing someone else. Meanwhile, Spencer heads to Colorado to win back Heidi.

MTV hosts a big live show prior to the big season three finale. MTV welcomes all show cast members and will welcome a series of dedicated fans who'll both give an insight into the series. Aired: 12/10/2007

Broken hearts as far as the eyes reaches: Heidi and Spencer can't agree on their wedding plans while Brody and Lauren both refuse to make the first step. Aired: 12/10/2007

After the season three finale the cast gathers in the Arena club in LA to celebrate the success of this season. This show is presented by Dan and Jessi. At 11:30pm this will be continued by a live web cast where fans will be able to chat with their favorite cast members. Aired: 12/10/2007

Lauren and Whitney arrive in Paris where they are about to cover the "Crillon Ball" for Teen Vogue Magazine. Aired: 3/24/2008

While making a sandwich, Spencer learns that Stephanie's heading to S Bar to meet Heidi. Spencer seems visibly upset when Stephanie calls him a "couch potato" and peaces out for a night out on the town. It's girls' night out at S Bar for Audrina, Heidi and Stephanie. Audrina realizes she's in a lose-lose situation, knowing that she's bound to make "someone" -- namely Lauren -- mad by hanging with Heidi.

As Heidi picks shoes out of her closet, it seems that she's definitely signing on for a night out with Stephanie and company. When Heidi asks if Lauren's going to be there, Stephanie tells her not to freak out. But, Heidi's optimistic -- now that she's on the outs with Spence, maybe Lauren will be more willing to play it cool.

It's Lauren's birthday and for some guests an appearance at her party could mean a lot of trouble. Also from whom will Lauren receive a birthday kiss? Aired: 4/7/2008

A clash between Lo and Audrina finds Lauren caught in the middle. Heidi decides to break up with Spencer and take a job in Las Vegas. Stephanie wants Spencer to move out from her place which makes him turn back to Heidi, although he is sure it's too late.

Lauren is surprised by a job offer she receives. Meanwhile Heidi enjoys a night out with her friends, until she spots Spencer and things end up in a fight. Aired: 4/14/2008