The gang is preparing for the SAT's when Silver disagrees with Teddy's decision to skip college to focus on his tennis career and things grow even more tense when she meets his movie star father, Spence. As a result of falsely accusing her faculty adviser of sexual harassment, Naomi is now required to complete community service and publicly apologizes to her peers for the trouble she has caused. Meanwhile, Liam and his father, Finn, reconnect and attempt to rebuild their relationship as Liam moves in with him. Navid and Dixon host an underground gambling party that results in Dixon quickly becoming out of control with betting and he ends up owing Teddy's father's bookmaker, Mark, a lot of money. Debbie reveals to Harry that her yoga instructor made a pass at her, which forces the two to finally discuss their recent problems. Annie, aware of her parents marital troubles, turns to Liam for support. At the end, Naomi gets an unpleasant surprise when her psychotic and revenge-seeking sister, Jen, returns to Beverly Hills, with her French husband in tow, where they announce that they are the new owners of the Beverly Hills Beach Club.

Teddy invites Silver over for dinner at his house so she can meet his father, but things doesn't go as well as planned when Spence openly disapproves of her. Meanwhile, Naomi finds herself at odds again with her sister Jen when she begins giving Naomi a very hard time as she continues her community service work at the Beach Club. Navid realizes he still has feelings for Adrianna after she asks for his help to write a song as she prepares a solo singing career. Also, Annie learns of her parents problems marital troubles and thinks that their marriage is doomed.

Adrianna's new romance with pop star Javier continues to blossom, while Navid continues to work up enough courage to tell her how he feels. Jen has taken control of Naomi's finances and puts her on a tight budget, resulting in an instant meltdown by Naomi. Without her credit cards, Naomi is too distracted to realize Liam is in need of support to deal with the departure of his father, so he turns to Annie for comfort. Despite Spence's suggestion, Teddy refuses to end his relationship with Silver, and the two decide to spend the night together. Ivy invites Dixon to spend the summer in Australia with her and Laurel, but the idea doesn't go over well with his parents. Harry and Debbie's problems escalate when she finds out that Harry has been hiding Dixon's gambling issues from her. Meanwhile, Jasper returns to resolve things with Annie.