The first day of school is usually full of excitement, but this year it is kicking off with a major crisis! Bradley, Brian, Nate, and Lucy had the very important job of taking care of Goldi, the first grade class hamster, over the long summer break. When they go to bring her back to the classroom, Goldi has completely vanished! In place of the missing hamster, the sneaky thief left behind a very strange clue: a tiny keychain shaped like a bright green and orange sneaker. Suddenly, the kids start spotting life sized versions of those exact same colorful shoes walking all over Green Lawn! Even worse, Goldi is not the only thing that has gone missing. Other items are starting to disappear from around the neighborhood. The four friends must jump into action and follow the colorful footprints to track down the culprit. Join the young detectives as they search the school hallways and local streets for clues to crack the case. Can you help them catch the sneaker wearing thief and bring the beloved class pet back safely? Lace up your shoes and step right into the investigation!