The Simpsons Season 37 Episode 3
Overview
Springfield is threatened by a mysterious killer monster emerging from the sewers, Krusty welcomes a demonic guest to his Halloween special, and the action moves a thousand years into the future in a post-apocalyptic, plastic version of the city.
Director: Matthew Faughnan
Guest Star: Idris Elba, Ike Barinholtz, Michael Keaton, Viola Davis