As the opening night of the school musical approaches, Ty reveals to Annie his plans for a one-on-one after party in his hotel room with her. When Annie's dad catches her in a compromising position with Ty, he becomes concerned about how fast their relationship is developing. Meanwhile, Naomi can't accept her parents' divorce and Adrianna is confronted about a substance abuse problem, giving Annie the chance to take the lead in the musical.
Season 1 Episode 5 of 90210 resulted in a 0.00 rating in the 18-49 demographic.
The series revolves around the three-generational Wilson family who have recently moved to Beverly Hills, California after the father Harrison Wilson accepts the position of being the principal of West Beverly Hills High School.