Tripper is the head counselor at a budget summer camp called Camp Northstar. In truth, he’s young at heart and only marginally more mature than the campers themselves. Tripper befriends Rudy, a loner camper who has trouble fitting in. As Tripper inspires his young charges to defeat rival Camp Mohawk in the annual Olympiad competition, Rudy plays matchmaker between Tripper and Roxanne, a female counselor at Northstar.

In the Pacific Northwest during the 1950s, two young sisters whose mother has abandoned them wind up living with their Aunt Sylvie, whose views of the world and its conventions don’t quite live up to most people’s expectations.