S3 E1 • You Know What You Did

The third season premieres with Lauren and Heidi still unable to get past their differences and having become mortal enemies. Meanwhile, Whitney has graduated from college and is now juggling a real job and Audrina has become Lauren's new roommate and best friend.

Première diffusion : 13 août 2007

S3 E2 • Big Girls Don't Cry

Lauren returns to Laguna Beach for some advice. Meanwhile, Audrina and her new beau get serious with their relationship and Spencer proposes to Heidi.

Première diffusion : 13 août 2007

S3 E3 • Truth and Time Tells All

Audrina invites Lauren out to dinner to get to know Justin better. Lauren is not impressed by him. Audrina talks to Justin and decides to give their relationship time. Spencer suprises Heidi by buying two arcade games for the apartment. Later, she suprises him by painting over the mural in the living room.

Première diffusion : 20 août 2007

S3 E4 • Meet the Parents

Spencer and Heidi go away for the weekend to meet Heidi's parents, causing Spencer to flake on his and Brody's barbeque. Lauren, Audrina, Lo, and Justin Bobby attend. Justin Bobby flirts with other girls and leaves Audrina at the party, and Lauren finally realizes that she and Heidi will never be friends again.

Première diffusion : 27 août 2007

S3 E5 • Rolling with the Enemy

Just when everyone believes that Justin Bobby is finally history, Audrina decides to rekindle the relationship, much to Lauren and Lo's surprise.

Première diffusion : 3 septembre 2007

S3 E6 • Second Chances

Lauren is still wondering who could be the guy for her when suddenly Jason gives her a call and wants to catch up.

Première diffusion : 10 septembre 2007

S3 E7 • They Meet Again

Heidi tries to fit into her new job. Meanwhile Lauren has to decide if she will give Jason another chance.

Première diffusion : 17 septembre 2007

S3 E8 • For Better Or Worse

Spencer and Heidi's wedding date gets closer, but will he tell his family before he steps into church? The Teen Vogue event gives Whitney and Lauren a lot of work, while Jason tires to start over with a new girl and a new place.

Première diffusion : 24 septembre 2007

S3 E9 • What Happens In Vegas...

Brody celebrates his birthday in Las Vegas and of course Lauren and her friends are invited too. Meanwhile Heidi has to face more problems at work than she likes.

Première diffusion : 1 octobre 2007

S3 E10 • What Goes Around...

When Jen wants to be friends again with Lauren, however the dark past starts to haunt everyone. And not everyone likes the past revealed.

Première diffusion : 15 octobre 2007

S3 E11 • No More Mr Nice Guy

Lauren goes out with one of the male models from a photo shoot, leaving Brody to question everything that has developed in the past weeks.

Première diffusion : 22 octobre 2007

S3 E12 • Stress And The City

Whitney and Lauren are sent to New York to present their ideas about the big fashion show. Meanwhile Franky tries to fix Brody's and Spencer's friendship.

Première diffusion : 29 octobre 2007

S3 E13 • Young Hollywood

The Young Hollywood party finally happens and Whitney is in charge. Heidi celebrates her 21th birthday with Spencer. And Audrina might have a new admirer.

Première diffusion : 5 novembre 2007

S3 E14 • Forgive and Forget

Lauren and Whitney have to cover an event for Teen Vogue, where Lauren runs into Heidi and of course they fight again. Later on Heidi tries to make up to Lauren, but Lauren turns her down. Meanwhile Audrina and Justin still struggle in their undefined relationship.

Première diffusion : 12 novembre 2007

S3 E15 • With This Ring...

Heidi and Spencer constantly fight about how they should get married. Will they find a solution? Meanwhile Whitney has found a guy that asks her out on a date.

Première diffusion : 19 novembre 2007

S3 E16 • A Night At The Opera

Lauren and Audrina find out that Spencer has a sister. She also pays Spencer and Heidi a visit. When Lauren and Audrina hang out with Brody, they not only run into Spencer's sister, but also run into Justin - with another girl.

Première diffusion : 26 novembre 2007

S3 E17 • Once A Player...

Stephanie tells Spencer that Heidi might bail out of the wedding, so Spencer and Heidi fight once again. Lauren and Audrina both have a date.

Première diffusion : 3 décembre 2007

S3 E18 • When One Door Closes...

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.

Première diffusion : 10 décembre 2007

S3 E19 • Paris Changes Everything

Lauren and Whitney go to Paris, but the trip is marred for Lauren when she finds out Brody is seeing someone new. Meanwhile, Spencer follows Heidi to Colorado to try to win her back.

Première diffusion : 24 mars 2008

S3 E20 • Back To LA

After their week in Paris, Lauren and Whitney are back home and have to adjust to the changes and the changes they plan to do.

Première diffusion : 31 mars 2008

S3 E21 • An Unlikely Friend

Loyalty lines are questioned when Stephanie Pratt makes nice with Lauren at FIDM. Plus, Whitney travels to NYC to jump-start her career with People's Republic.

Première diffusion : 31 mars 2008

S3 E22 • When Spencer Finds Out...

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?

Première diffusion : 7 avril 2008

S3 E23 • Just Be Careful...

After the much talked about birthday party Lauren had, the talk of the characters on The Hills is Lauren's friendship with Stephanie. Audrina is approached by someone unexpected, much to someone else's discomfort.

Première diffusion : 7 avril 2008

S3 E24 • Girls Night Out

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.

Première diffusion : 14 avril 2008

S3 E25 • A New Roommate

Lauren and Lo are looking into the real estate market as they plan to buy a house. Meanwhile, Audrina reconsiders her situation as a single woman.

Première diffusion : 21 avril 2008

S3 E26 • A Date With The Past

The girls go out to find a new home. When they find one, the guest list for the housewarming party is subject to more than just one fight.

Première diffusion : 28 avril 2008

S3 E27 • No Place Like Home

While Lo and Lauren enjoy living at the house, Audrina feels more and more left out. Meanwhile Stephanie thinks it's time to get rid of Spencer and Heidi prepares her next step in her career.

Première diffusion : 5 mai 2008

S3 E28 • The Next Move Is Yours

Lauren tries to uphold her friendship to Audrina, but is it already too late? Meanwhile Spencer tries to win Heidi back and risks her career to do so.

Première diffusion : 12 mai 2008