The episode was written by Andrew Miller & Andrea Newman and it was directed by Liz Friedlander.

A strange woman appears at Cassie's (Britt Robertson) door and introduces herself as Lucy (Lauren Stamile).

Lucy tells them that she has information about the medallion Cassie found and she knows the ritual to activate it, but the whole Circle has to be present to make the spell.

Adam (Thomas Dekker) is worried about Cassie and the dark magic taking over her and he doesn't agree with them activating the medallion.

In the meantime, Ethan (Adam Harrington) wants to organize a birthday party for Adam and he is asking for Diana's (Shelley Hennig) help, while Faye (Phoebe Tonkin) and Melissa (Jessica Parker Kennedy) try the Devil's Spirit Faye took from Callum (Michael Graziadei).

Meanwhile, Charles (Gale Harold) meets Dawn (Natasha Henstridge) and warns her that he will take the crystal back from Ethan and he threatens her that if she gets in his way again, he will kill her.

Dawn finds out that Lucy is back in town since she had marked her sixteen years ago and she meets her in her room.

They talk about what happened back then and that Lucy betrayed them since, as John Blackwell's psychic, she should have warned him about the witch hunters.

The episode ends with Lucy meeting the leader (Sammi Rotibi) of the witch hunters, the same man who killed the Circle's parents sixteen years ago, telling him what happened.