The whole town is talking about what's buried beneath the playground... Windy Bottom, Georgia is usually a peaceful place. Coop helps his mom at her café and bookstore, hangs out with his grandpa, and bikes around with his friends Justice and Liberty. The town is full of all kinds of interesting people, but no one has ever caused a problem. Until now. And somehow, Gramps is taking all the blame! It seems like there are a lot of secrets that were buried in their small town after all... Will Coop and his friends get to the bottom of the mystery and clear Gramps's name before it's too late?