When things go missing around the campground, Gracie and her new friends set out to discover who (or what) is responsible. As they learn about Hilton Head Island and its habitat, their suspect list quickly grows. But they find themselves short on clues. Will they be able to solve the campground caper? Join in the adventures as Shining Hope takes Gracie, her grandparents, and her little dog Marshmallow to Hilton Head Island for a vacation full of sun, fun, and a real-life mystery.