Problem Child

Junior's class takes a field trip to Fort Healy, the site of a famous battle that made Junior's ancestor, Big Bob Healy, a western hero. Big Ben and Peabody are using the kids as free labor to get the Fort ready for tourist season. Also, Junior finds out his ancestor was not a hero, but a thief. Junior manages to get back at Big Ben and Peabody, and correcting history at the same time.