Harry Wilson, new principal of West Beverly Hills High School, returns from Kansas to his childhood home of Beverly Hills with his wife Debbie, their daughter Annie and adopted son Dixon, to care for Harry's mother, former television star Tabitha Wilson.
When Naomi fails to complete an assignment, English teacher Ryan Matthews and guidance counselor Kelly Taylor, bring the problem to Harry, who quickly realizes that keeping secrets about his past is going to be impossible.
Annie and Dixon's Friday night plans come to a screeching halt when they learn that Harry and Debbie have planned a family bowling night. When Ethan, Navid and Silver show up at the bowling alley, Harry and Debbie realize they have lost control of their family outing but encourage their kids to spend time with their friends.
Harry reveals that West Beverly's theater director is no longer able to direct the school musical, "Spring Awakening," prompting Tabitha to offer her services as the new director, much to Annie, Harry and Debbie's surprise.
As opening night of "Spring Awakening" nears, Annie and Ty have had a chance to spend a lot of time together and Ty reveals his plans for a one-on-one after-party in his hotel room.
Brenda, Kelly, Ryan and Harry confront Adrianna, but Adrianna denies being on drugs. When Debbie is given the opportunity to shoot a fashion show for Nylon magazine, Annie decides to use the fashion show as part of her class assignment on careers.
Annie and Ethan are paired up to take care of a baby as part of a class project and the experience causes them to see each other in a new light. Silver and Dixon continue to get closer and during her half-birthday party.
Annie prepares for her driver's test and works out a plan with Ethan so they can attend the Homecoming dance without officially making it a date. Adrianna confesses about her drug use, effectively clearing Naomi's name, and is forced to check into rehab for her addiction.
Harry and Debbie inform Annie and Dixon about Harry's son that was given up for adoption nearly 22 years ago. While Dixon doesn't seem bothered by the information, Annie releases her frustration and anger at a sleepover with Naomi, Silver and Adrianna.
Upon seeing Annie and Ethan kissing, Naomi decides to take matters into her own hands to get back at Annie for her deceit. The students are in shock about the news that Ryan hooked up with one of the students, Kimberly, and that he has taken a leave of absence.
Still in shock from the surprise arrival of their half-brother Sean, Annie and Naomi put their arguing aside long enough to process the news. Harry and Debbie also deal with Sean's arrival by welcoming him into their home.