What would you do if someone upset your grandma? Maddie and Grandma are all set to enter the baking competition at the town’s annual show when someone steals Grandma’s cupcakes! Maddie knows how much winning the competition means to Grandma. With the help of her loyal collie Ruby, Maddie has to find the thief. Ruby finds the first clue: a cupcake dropped on the street. Talking to the neighbours offers another. Maddie’s friends Josh and Rose help her put together a list of suspects. But when Maddie encourages them to climb into the showgrounds after dark, she gets them all into trouble… Can Maddie find out who took the cupcakes and why?