The Simpsons › Season 21

S21 E22: The Bob Next Door

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.

Air date	May 16, 2010
Runtime	22 minutes
TMDB rating	★ 6.8/10