When Dixon (Tristan Wilds) gets arrested in connection to a fire at a sorority house, Annie (Shenae Grimes) has to make a decision that could expose her work as an escort.
Adrianna (Jessica Lowndes) and Silver (Jessica Stroup) attempt to put their past behind them, which spells disaster for Silver's relationship with Greg (guest star Niall Matter).
Vanessa (guest star Arielle Kebbel) helps throw a party to re-launch Liam's (Matt Lanter) bar, where the All-American Rejects perform. Michael Steger, AnnaLynne McCord, and Gillian Zinser also star.
90210 airs every Tuesday at 10 p.m. on Star World.