The Simpsons · S21E22
The Bob Next Door
2010-05-16 · 22 min · 3.4 (25) · TMDB
Bart becomes convinced that his new neighbor, Walt, is his archenemy, Sideshow Bob, disguised and back for revenge. But when Marge tries to convince Bart otherwise by taking him to visit the state penitentiary, a disturbing truth is revealed.