THE SIMPSONS: After getting struck by lightning, Bart receives visits from ghosts, who want closure only he can provide in the all-new “Flanders’ Ladder” season finale episode of THE SIMPSONS airing Sunday, May 20 (8:00-8:30 PM ET/PT) on FOX. THE SIMPSONS ™ and © 2018 TCFFC ALL RIGHTS RESERVED.