90210 season 5 episode 15 "Strange Brew" airs Monday Feb 25 2012 (8:00-9:00 p.m. ET) on The CW.
Episode Synopsis: Naomi (AnnaLynne McCord) decides to open a restaurant with her half-brother Mark (guest star Charlie Weber), while Dixon (Tristan Wilds) books Michaela (guest star Lyndon Smith) to perform at the restaurant opening, unbeknownst to Silver (Jessica Stroup). Annie (Shenae Grimes) feels confused about her newly re-surfaced feelings for Liam (Matt Lanter) and Navid (Michael Steger) agrees to escort Campbell’s (guest star Grant Gustin) fiancé to an event, only to find out Campbell is cheating on her. Trevor Donovan and Jessica Lowndes also star. Bethany Rooney directed the episode written by Brian Dawson.