It's Prom night in Chance Harbor and after Adam uncloaks a crystal hidden in the school, Blackwell tells Cassie she can use her dark magic to find it. When Cassie follows this advice, it leads her to a dangerous discovery. Meanwhile, Faye invites Jake to Prom, despite the fact that he stood her up two years earlier. Adam, Diana, Cassie and Melissa finally make it to Prom but when they lose the crystal to Eben, they end up in a life and passing situation. Meanwhile, Dawn attempts to stop Blackwell, who casts a deadly spell on Charles.
Season 1 Episode 21 of The Secret Circle resulted in a 0.00 rating in the 18-49 demographic.
Cassie Blake was a happy, normal teenage girl - until her mother Amelia dies in what appears to be a tragic accidental fire. Orphaned and deeply saddened, Cassie moves in with her warm and loving grandmother Jane in the beautiful small town of Chance Harbor, Washington - the town her mother left so many years before - where the residents seem to know more about Cassie than she does about herself. As Cassie gets to know her high school classmates, including sweet-natured Diana and her handsome boyfriend Adam, brooding loner Nick, mean-girl Faye and her sidekick Melissa, strange and frightening things begin to happen.
When her new friends explain that they are all descended from powerful witches, and they've been waiting for Cassie to join them and complete a new generation of the Secret Circle, Cassie refuses to believe them - until Adam shows her how to unlock her incredible magical powers. But it's not until Cassie discovers a message from her mother in an old leather-bound book of spells hidden in her mother's childhood bedroom, that she understands her true and dangerous destiny. What Cassie and the others don't yet know is that darker powers are at play, powers that might be linked to the adults in the town, including Diana's father and Faye's mother - and that Cassie's mother's passing might not have been an accident.