Super sleuths Daphne, Shaggy and Scooby-Doo are on the case for ghosts, real ghosts this time, 13 of the world's meanest ghosts to be exact. Once banned to an enchanted Chest of Demons of eternity, all 13 spirits are now loose to wreak havoc on the world and only Scooby-Doo can recapture them because -- ruh-roh! -- he's the one who unwittingly opened the chest and let them out! Joined by the pint-sized, fast --talking magician/con artis