Grace, Gretchen and Greer - three teenage descendants of Medusa who must unite and embrace their fates in a unique paranormal world where monsters lurk in plain sight. The sisters are now reunited, but their battle against the vile beasties of the abyss rages on. And as if training to become fully-fledged huntresses weren't enough, the boys in their lives are causing them problems. Is Nick all he seems? And where's Thane? He's gone missing, and Grace is sure he's hiding something from her. As the girls discover more about their heritage, they find themselves in greater danger than ever. Can they face up to the sacrifices they must make in order to fulfill their destiny?