Homer Goes to Prep School

Homer Goes to Prep School is the ninth episode of Season 24. It aired on January 6, 2013.

Synopsis
Homer joins the "Springfield Preppers," an off-the-grid survivalist group whose leader (guest voice Tom Waits) has set up a top-secret retreat outside of town to prepare for the end of the world. But Marge grows skeptical of the group's alarmist shenanigans.