Coming to Homerica

Coming to Homerica is the twenty-first episode, and the season finale of the twentieth season of The Simpsons. It aired on the Fox network in the United States on May 17, 2009.

Plot
When nearby Ogdenville’s economy crumbles due to tainted barley discovered in Krusty’s veggie burgers, the unemployed workers of Ogdenville flock to Springfield. After Mayor Quimby closes Springfield’s borders and enlists private citizens to help patrol them, Homer organizes a border patrol group, but they cannot keep the people out. They decide to build a wall to keep them out, but they miss having the other people around. They let the Ogdenville people back in and have a party.

Cultural References
The name is a parody of the film Coming to America. The house from the Pixar film Up (film) can be seen in the background when Lenny and Carl are monitoring Springfield from the air.

The Ogdenville citizens are decedents of Norwegian imigrants, and the episode was aired on May 17th - the day Norway celebrates its Constitution.

When Homer first tries Aquatit, he gets drunk immediately and his head hits the table and he says "More Aquatit Please", a parody of the "More Ovaltine Please" Line