Indian Summer features an ensemble cast, including Binder's childhood friend, film director Sam Raimi, who has a supporting role in it.

While willing to participate in the camp reunion, Brad finds the place smaller and dingier than he remembers, and he can't wait to get back to managing his business.

Worldly but still single and occasionally lonely as she approaches middle age, Jennifer is tempted to reciprocate.

Camp traditions include moose watching, shreks (pranks), Lou doing a "dirty dog" (catching campers sneaking out of their cabins at night), the morning wakeup bell, taking what recreational opportunities Wakonda (the Indian god of weather) provides, boxing as both athletic discipline and means of settling arguments, and Lou bestowing the same "super-secret Indian name" (Thundering Cloud) on young campers having trouble socially adjusting to the camp environment.

Lou's primary reason for retiring is his inability to connect with a new generation of kids more interested in boomboxes and headphones than in the great outdoors.