90210 revolves around several students at the fictional West Beverly Hills High School, including new Beverly Hills residents Annie Wilson and Dixon Wilson. Their father, Harry Wilson, has returned from Kansas to his Beverly Hills childhood home with his family to care for his mother, former television and theater actress Tabitha Wilson, who has a drinking problem and clashes with his wife Debbie Wilson. Annie and Dixon struggle to adjust to their new lives while making friends and yet adhering to their parents' wishes. The series later focuses on the same group of friends as they graduate from West Beverly Hills High School and begin their lives in the adult world. Some attend college at California University, while others begin exploring avenues beyond post-secondary education. During its first two seasons, 90210 featured cast members from the original Beverly Hills 90210 series that aired years before the new edition, including Jennie Garth, Shannen Doherty, Tori Spelling, Ann Gillespie, and Joe E. Tata.