It's not a spoiler to say that Sideshow Bob will finally kill his arch-nemesis Bart Simpson Sunday on "The Simpsons: Treehouse of Horror XXVI." However, this being the annual Halloween episode, there's a twist.

As you can see in the clip below, courtesy of Entertainment Weekly, Bob (guest star Kelsey Grammer) has found a way to reanimate Bart, so he and kill him again and again.

Airing Sunday at 8 p.m. ET/PT on Fox, the episode also feature parodies of "Chronicle" and "Godzilla," and a couch gag by "Ren & Stimpy" creator John Kricfalusi.