Kristin, Audrina, Stephanie and Lo talk about growing up and finding out what they want from life.
Frankie and Taylor tell Brody that he broke Kristin's heart, and she's leaving town.
Lo tells Stephanie she needs to pursue Josh, and Stephanie pursuades Lo to accept Scott's offer to move in together.
Kristin tells Stacie she's gotten all she could from L.A., and is ready to start over somewhere new... maybe Europe.
Stacie urges Kristin not to leave town without telling Brody.
Stephanie visits Josh at the practice track, and they make their relationship official.
Kristin visits Brody to tell him she's moving and invite him to her going away party, but he refuses to celebrate her leaving.
Audrina gets Stephanie's input on the new place on the beach she's ready to move into.
Kristin's friends gather near the pool at Hollywood Roosevelt to give her a proper goodbye.
Kristin and Stacie join their friends on the rooftop to celebrate their friendship, but Kristin feels more alone surrounded by happy couples.
Kristin's goodbye party continues as her friends toast and support her decision to move on.
Brody arrives at the party to tell Kristin he doesn't want her to leave, and they share a bittersweet moment.
Kristin and Brody's get sentimental as they hug and realize a major chapter in their lives is ending.
Lo moves in with Scott, and he tells her he wants them to spend the rest of their lives together.
Stacie helps Kristin get ready to leave LA.
Brody and Kristin say goodbye; a look back at Lo, Audrina and Kristin's lives from Laguna to the Hollywood Hills.