"How much is that gorilla in the window?" For years, Mr. Peebles has wanted nothing more than to finally sell Magilla Gorilla and get the big ape out of his pet shop. But when a mad scientist buys Magilla to use him as the test subject for some monstrous experiments, it's up to Scooby and the gang-and Ogee, Magilla's best friend-to get him back before it's too late!