The third season of 90210 welcomed the students of West Beverly Hills High School to their senior year with a surprising new family and the destruction of another. Adrianna's pop career will blossom and a new love will cause a fall out of a group of friends. An earthquake rocks Beverly Hills in the premiere. "We wanted to open the season with an event that has both physical and emotional ramifications for several people," said co-executive producer Jennie Snyder Urman, who adds that the tremors will prove particularly life-altering for one teen. "One of them has a very serious injury that takes time to resolve and sort of changes the direction of his or her life.