Cassandra, who is a psychic, loves living on her own and who wants nothing to do with the Greek Gods suddenly gets thrust into a war between the Greek Gods and the demons that have been unleashed upon the human realm. She is on a mission to find all the missing Scepters that the Greek Gods are after for the ultimate power to rule the world. Sebastian and Zeno, who are shapeshifters, have been sent to Earth by Artemis to save humankind from demons who devour human souls and can shape-shift into them by drinking their blood. They rescue Cassandra and team up with her to help her locate all the missing Scepters and save her from the demons who are trying to kill her.