Misty and Mary-Lou never knew Christmas could be so perilous. One night in December, their uneventful lives were shattered. A Dark Knight from the magical land of Glamorgan accidentally kidnaps them while on an evil mission to steal Santa sets from the Mortal World. The girls escape and enter a beautiful hidden world full of mystery, danger, and friends. Evil servants shadow them and they draw upon each other's strengths to rally all the magical creatures against the Enemy's plans. They journey with all speed from Pearl's Gate to the mines of Pudgemud and the House of Warmth to warn Santa Clause of the growing danger. Can these two young mortals save the magical land of Glamorgan and the Mortal World before the Dark Knight King ends Christmas forever?
