Cassie struggles with maintaining her loyalties, as she is forced to keep the Circle's secrets from her suspicious grandmother, and Diana tries to maintain hold of her relationship with Adam and arranges a date night. Melissa recruits Nick and Faye to help her find her family's Book of Shadows; however all is not what it seems. The six members of the Circle are brought together in order to fight off a dark force that threatens them from within. Dawn tries to continue making plans for the Circle with Charles, only to discover that he may have more than business on his mind.