Following the death of her grandfather, Bess is handed the keys to his most prized possession – his Odditorium. She has always loved the strange and magical wonders within. But unless she can come up with a plan to draw in the crowds, she will have to close its doors for good. When a mysterious train pulls into town heading for the Land of Halloween Sweets, it looks like this might be her chance to save the Odditorium. So Bess sneaks onboard. She is soon discovered by Beau the puppeteer, Louis the violinist and Maria the fire witch. Eager to prove herself useful, she offers to help them hunt for the rarest of all candies – the ghostly gobstopper. But beneath its sugary exterior, the land is more dangerous than it looks…