Scooby Doo: Mystery Incorporated Season 1

Fred, Daphne, Velma, Shaggy, and Scooby-Doo run afoul of both their families and the Sheriff because their love of solving mysteries disrupts their supposedly cursed town's haunted tourism industry. But when a slime mutant appears and is caccooning it's victims, these kids aren't going to sit idly by while there's another mystery to solve... though they may be getting involved in more than they bargained for.