The tension between Lo, Lauren and Audrina continues and soon things reach boiling point.

Stephanie's birthday party is around the corner and so everyone tries to make an appearance. Also things start to change for Whitney.

Whitney's love life starts to heat up while Lauren's starts to cool down. Meanwhile Heidi and Spencer fight.

Brody attacks Stephanie and insults her, just before he's arrested.

Brody is still in jail, so the girls try to come up with a way to get him out. Plus Audrina and Lauren finally sit down and talk to each other.

Justin goes MIA. Holly calls Lauren, but how will Heidi and Spencer react to that?

When Lauren is away for a couple of days, Stephanie and Doug start dating secretly. How long will that stay a secret though?

Doug and Stephanie have to explain themselves to Lauren. Meanwhile Heidi's mother pays a visit.

Heidi tries to reach out to Lauren. Meanwhile Audrina has a date, but what will Justin say to that?

Spencer sets an ultimatum for Holly to move out. Meanwhile Audrina checks which boy is best for her. Will it be Justin?

Spencer tries to break up Stephanie's relationship. Meanwhile Lauren and her friends meet in Cabo.

It's time for the truth in Stephanie's and Audrina's relationship.

Audrina is searching for a new place to stay with Justin. Meanwhile Heidi runs into trouble at work.

Whitney and Lauren are called to New York to work on Buckler's Fashion show. Meanwhile Heidi has to deal with her new situation.

SBE offers Heidi one last chance. Meanwhile Holly finds a new place to crash.

Audrina believes a rumor she hears: that Lauren hooked up with Justin. Meanwhile Holly tries to get Heidi away from Spencer.

The Pratts try to be a family for once and Audrina hopes Lauren would talk to her again.

Whitney gets an incredible job opportunity in New York.

Whitney prepares to move to New York and Spencer and Heidi make a holiday trip to Mexico.

While one couple argues over legalizing their marriage another one is about to get married. Also Lauren runs into Heidi.

The entire cast meets to celebrate the season finale and Whitney's new show The City.