In a world where monsters flee to Halloweentown to escape reality, the Cromwell family is about to face a sinister threat. The grandson of their arch-nemesis, Kalabar, seeks to exploit the grandmother's ancient book to transform Halloweentown into a dull, grey replica of the real world, and to turn the inhabitants of the real world into monsters. Only Marnie, a young and inexperienced witch, stands in the way of this evil plan.

Halloweentown II: Kalabar's Revenge
A young witch and her grandmother join forces to thwart the evil plans of a warlock's son, who threatens to bring about global chaos and devastation.