One year has passed since Sally wed her beloved Jack Skellington and stepped into her role as queen of Halloween Town. Even with Jack at her side, though, being a ruler isn’t easy, and Sally feels uncertain of her future. Her seams are stretched thin with her royal duties, her newfound family in Dream Town, and a desire to bring citizens from across the Hinterlands together. Then, when Sally and her new rag doll apprentice, Luna, fall through a mysterious portal, they find themselve in a new realm called Time Town. They soon discover that someone has tampered with the clock that controls Halloween Town, and Sally cannot return to the present-day version of her home unless she finds the culprit and resets time. Sally and Luna embark on a journey to unmask the truth, encountering more towns, friends, and foes along the way. But the clock is ticking, and as Sally fights to save Jack and her hometown, she wonders what kind of future she really wants—and what she must sacrifice to get it.