When the evil spirit Pitch Black, known by the children of the Earth as the Boogeyman, begins an attack, the Guardians - Santa Clause (North), The Toothfairy, The Easter Bunny, and the Sandman - must invite another new Guardian for help. When they attempt to add Jack Frost, he refuses out of spite that he isn't good enough. As the Guardians fight Pitch Black and convince Jack that he is good, the children slowly stop believing in them. Jack must help the Guardians restore their magic with the children of Earth so they can continue protecting the children from danger.
