It's Halloween and Adrianna channels Marilyn Monroe to help deal with her broken relationship with Navid. Silver and Kelly take different stances as to how to care for their mother. Naomi continues in her relationship with Richard, but later shares an intimate moment with Jamie. Dixon begins to realize that Sasha is in a different place in life than he is and decides to end their relationship. Tensions arise between Debbie and Harry; Annie and Jasper's relationship is tested; and Liam faces off with the newest member of the surf team.
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.