A bounty hunter from the underworld, a demonic goddess, a cursed mythical kingdom rising from the depths of below, and a mouthy twelve-year-old are no match for Danger Devil and her sidekick Kid Diabla. These masked agents from the Mystic Bureau are dedicated to protecting the world from all supernatural threats, especially the Order of Methalia, an ancient society hellbent on returning the wicked one to her throne as the ruler of the ancient civilization of Tragg Magnar.