Coming to Homerica is the twenty-first episode and the season finale of Season 20, which aired on May 17, 2009. The episode was written by Brendan Hay and directed by Steven Dean Moore.
Ogdenville’s economy takes a stumble after tainted barley is discovered in Krusty’s veggie burgers and the unemployed of Ogdenville flock to Springfield. When Mayor Quimby closes off the town’s borders and enlists private citizens to help patrol them, Homer puts together a border patrol group.