The Funnie family is curious when Doug gets a letter from Bolivia. Doug’s explanation involves the previous summer, where Doug went to the Grinning Bear Sports Camp with Patti. Meantime, Doug’s asthmatic cabinmate Leonard, who has made a career of escaping summer camps, plans yet another escape. However, Doug, Chalky, and Patti have to worry about the upcoming basketball game they have to play against a tougher camp.