A major earthquake hits L.A. which traps Susan and Brandon in an elevator with a pregnant woman who goes into labor. Meanwhile, his friends are rocked after Dylan's announcement about his and Toni's engagement. While Donna continues to try out for Rose Queen, she finds a picture of her mother taken during a 1969 Rose competition, while at the same time, Ray's therapist warns Donna that he has a history of being abused as a child by his father and he may harm her.

Kelly's father Bill Taylor, arrives in town apparently to stay, while at the same time, she again catches Colin sniffing cocaine. Joe makes a professional call on Donna's cardiologist father who discovers that Joe may have a certain heart disorder. Meanwhile, Nat refuses to participate in Steve's film festival honoring Roger Corman after the gang sees him in one of Corman's movies from 1972 titled 'Unholy Rollers'. Things take a turn when Joan Diamond, a former actress and Nat's old fiancée, arrives for the festival. Also, Brandon continues to be jealous of Susan's ex-boyfriend Jonathan when he phones to speak to her and Brandon doesn't leave a message for Susan.