TUESDAY, SEPTEMBER 30

"90210" � (8:00-9:00 p.m. ET)

"Model Behavior" (CONTENT RATING TBD) (HDTV)

ANNIE AND ADRIANNA GET THE CHANCE TO AUDITION FOR AN INDIE FILM � Brenda (guest star Shannen Doherty), Kelly (guest star Jennie Garth), Ryan (Ryan Eggold) and Harry (Rob Estes) confront Adrianna (guest star Jessica Lowndes) about her growing problems, but Adrianna denies being on drugs. When Debbie (Lori Loughlin) is given the opportunity to shoot a fashion show for Nylon magazine, Annie (Shenae Grimes) decides to use the fashion show as part of her class assignment on careers. Ryan asks Annie to partner with Adrianna on the assignment, and Annie reluctantly agrees, even though she is still upset with Adrianna over her relationship with Ty (guest star Adam Gregory). Naomi (AnnaLynne McCord) decides that the fashion show is the perfect place to bring her parents back together, but her plan backfires when her parents have a huge fight. Silver (Jessica Stroup) catches the attention of the Debbie's client at the fashion show. Also at the show, when an indie film producer remembers seeing Annie in "Spring Awakening" and offers her an audition, Annie convinces him to include Adrianna. Feeling guilty after Annie's nice gesture, Adrianna admits that she lied about her relationship with Ty. Kelly (guest star Jennie Garth) gets a call from an old friend that makes her question her relationship with Ryan. Finally, Naomi and Ethan (Dustin Milligan) come to a crossroads in their relationship. Tristan Wilds, Michael Steger and Jessica Walter also star. J. Miller Tobin directed the episode written by Jason Ning (#106).