THE SIMPSONS: When Bart goes missing, the town puts together a search party to find him. After most give up hope, Sideshow Bob manipulates Millhouse into revealing where Bart is hiding in the all-new “Gone Boy” episode of THE SIMPSONS airing Sunday, Dec. 10 (8:00-8:30 PM ET/PT) on FOX. THE SIMPSONS ™ and © 2017 TCFFC ALL RIGHTS RESERVED.