Harry and Debbie welcome Sean into their home, while Dixon, Annie, and Tabatha welcome him awkwardly despite the fact that they don't know much about him, while Naomi and her mother, Tracy, welcome him to their home as well. Meanwhile, Kelly and Brenda's friendship is slowly fading away and gets wider after Brenda is hospitalized from an accident and confides in Kelly that she seduced Ryan weeks earlier. Naomi decides to hang out with a new group of girls at school despite Ozzie's advice that they want nothing to do with her. Also, Silver feels threatened when a cheerleader, named Christina, shows too much interest in Dixon who shares the same interests he does.

Annie overhears Sean in a suspicious conversation with someone over the phone, which raises her uncertainty about whether Sean really is who he claims to be. Meanwhile, Brenda tries to make amends meet to Kelly after confessing about a tryst she had with the departed Ryan Matthews. But Kelly and Brenda have to team up to accompany Adrianna to a group therapy session for recovering addicts where after she learns that a friend of hers is HIV-positive, Adrianna goes to a clinic to get tested, but receives some other potentially life-changing news. Elsewhere, Christina invites Dixon over at her house for a Gospel gathering where she makes a startling revelation to him which could shake his romance with Silver.

Christina invites Dixon and Navid and the rest of the students to a house party where the band Carolina Liar will perform and Navid moves on from his relationship with Adrianna by connecting with a fellow Iranian girl named Nika. Meanwhile, Ethan gets involved in a traffic accident with a girl named Rhonda Kimble, a student at West Beverly whom he feels guilty about not knowing her since she's a long-time student. Adrianna and Naomi try to debate about how to tell both her mother Constance, as well as Ty, about Adrianna's pregnancy. While Ty takes the news very calmly, Adrianna fears a violent reaction from her selfish mother whom relies and takes advantage of Adrianna's acting career. But Adrianna finds out that Ty's parents want to bribe her to get an abortion and keep the news a secret. Eventually, Adrianna broadcasts a video announcement of her pregnancy to the entire school.