90210 - Episode 4.04 - Let The Games Begin - Official Synopsis

SWEET REVENGE --- Navid (Michael Steger) surprises Dixon (Tristan Wilds) with some studio time to apologize for messing things up with a music producer, where Dixon feels the pressure to create a hit song. Naomi (AnnaLynne McCord) plots revenge to take down rival Holly (guest star Megalyn Echikunwoke) and her sorority during the Greek games, which requires Austin's (guest star Justin Deeley) help, much to Naomi's dismay. Silver (Jessica Stroup) directs a disastrous commercial for Liam's (Matt Lanter) bar, while Ivy (Gillian Zinser) feels torn between her relationship and her friends. Shenae Grimes and Jessica Lowndes also star. Millicent Shelton directed the episode written by Jenna Lamia (#404).

Source: CW