After her mother dies in a fire, Cassie Blake moves with her grandmother to the beautiful small town of Port Chance, Washington. While Cassie meets her high school classmates, including Pretty Diana and her boyfriend Adam, who confronts lonely Nick, the girl and Faye, Melissa, strange and scary things happen.

They all descended from powerful witches and waited for Cassie to join and complete a new generation of The Secret Circle. What Cassie and the others don’t know yet is that the darker powers are at play, powers that might be related to the adults in town – and that Cassie’s mother’s death wouldn’t have been an accident.