"Previously On" into: Kristin and Stacie shop for Brody's birthday present.
'The Hills' theme song
Kristin and Justin get flirtatious at the beach, and decide to go to Brody's birthday party together.
Audrina tells Stephanie she's going on a date with Justin's friend Derek.
Brody's friends arrive for his surprise birthday party.
The party gets underway when Brody arrives, but Justin is nowhere to be found.
After Kristin gets hit by a water balloon, she is comforted by Brody, making Jayde jealous.
Justin's friend Derek picks Audrina up for a lunch date.
Spencer vents to Charlie about Heidi wanting children, when Enzo stops by unannounced.
Kristin, Stacie and Stephanie talk about Justin before Brody and the boys arrive for the after-party.
Brody vents to Kristin about Jayde not coming with him to the after-party.
When talk of having kids comes up at dinner, Spencer says no, but Heidi says yes.
Audrina tells Stephanie about her date with Derek, and Stephanie tells Audrina how Justin stood Kristin up at Brody's party.
Kristin and Stacie talk about Justin and Brody.
Kristin tells Stacie that she will not let Justin treat her the way he treated Audrina.