THE SIMPSONS: "TREEHOUSE OF HORROR XXVI"

Fox has released images and a description from "Treehouse of Horror XXVI," the episode of The Simpsons premiering on Sunday, Oct. 25 at 8 p.m. (ET/PT).

Here's how Fox describes the episode:

"In the annual fright fest Halloween episode, Sideshow Bob finally kills Bart, only to reanimate him; Homer wakes up with short-term memory loss; and Lisa, Bart, and Milhouse get super powers from radiation."

Kelsey Grammer guest-voices as Sideshow Bob

Click on the thumbnails for larger images.