Monsters are real, but only the FIVE can see them. Five teenagers who've recently discovered they have magical powers and are living in the Seattle underground feel it's their responsibility to protect unsuspecting humans from otherworldly foes. Things are going well until Johnathan, their unofficial leader and the boy sixteen year old Paige is in love with, is bitten by a changeling - the venomous saliva causing him to metamorphose into a ravening beast with each full moon. Paige vows that, no matter the cost, she will find a way to cure Johnathan of the evil that has embedded itself in his soul. But Johnathan's monthly transformation and daily personality roller coaster aren't the only problems they have to deal with. The Five are also gearing up to face their toughest and most dangerous enemy yet-a powerful and ruthless Warlock who will go to any means, including high school, to build his Dark Army.