Doug tells the story of what happened last summer at a sports camp. 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. This is a flashback of Doug and Patti from Nickelodeon's Doug (1991–1994).