Glimmer, a bright little ghost, is tasked with making sure the pumpkins stay lit and the town is safe.

However, something strange happens one night: one of the key lanterns mysteriously goes out, threatening the town's safety. When shadows in the forest begin to move, Glimmer realizes she needs help. A group of brave town children—Lia, Max, and Tommy—team up with Glimmer to find out what's extinguishing the lanterns and restore Hollowhill's magical protection.

Can Glimmer and her friends save their town?