"Guardians of Luna" centers around Carson Stone, who has come to Steelhenge looking for answers about his lineage. Driven by a mysterious letter from his father, what Carson uncovers is a city bearing an ancient curse. With each full moon, the city is terrorized by a pack of vicious werewolves. City leaders plan to eradicate the threat, and Carson must team up with three other werewolves in order to protect an ancient power source. In the process, they discover a dark secret about their ancestors that will force the "heroes" to make a crucial decision...one which could save humanity, or destroy it.