In this origin story, Harry Moon is up to his eyeballs in magic. In the small town of Sleepy Hollow where every day is Halloween night, his archenemy, Titus Kligore, has eyes on winning the annual Scary Talent Show. Harry's sister, Honey Moon, says Harry needs better tricks so he finds a new and better magic wand. Still, Harry has a tough job ahead of him if he is going to steal the crown. He takes a chance on a magical rabbit who introduces him to the deep magic. Harry decides the best way forward is to "do no evil " while the battle to defeat Titus goes epic.