One of few episodes inspired by 1962 film upon which the series was based. In that version, Eddie runs away from summer camp, throwing Tom into a panicked attempt to locate him. In this rendition, it's Norman who is panicked by the fear that Eddie won't be able to thrive away from home minus family to watch out for him.
At the morning flag-raising at Camp Natchanoomi, the American flag is on top (of course), with a slightly smaller "Ecology" flag under it. The Ecology flag was modeled after the American flag, with thirteen green and white stripes, and a yellow "Theta" (Greek letter) symbol on a green field in the upper left canton. It originally appeared in 1970 to commemorate the first Earth Day (source: Wikipedia).