Season one of Beverly Hills, 90210, an American teen drama television series, began airing on October 4, 1990 on Fox television network. The season concluded on May 9, 1991 after 22 episodes. The series follows twins Brandon and Brenda Walsh during their sophomore year in high school as they deal with everyday teenage issues such as rumors, peer pressure, shoplifting, sex, affirmative action, dysfunctional families, cancer scares, learning disabilities, date rape, alcohol abuse, and AIDS.