Jellystone Park is celebrating its' 100th anniversary, but it's also threatened with not enough money to keep the park open. Yogi and Boo Boo have to keep out of the way of humans and stop stealing their picnic baskets. The mayor has an idea and who knows what he'll stop at to see it go underway. He's thinking of turning Jellystone into an amusement park. Yogi has to get his head out of food and into the park to save it.—ppouliot-17200