“The Joy of Sect” is the thirteenth episode of Season 9 and aired on February 8, 1998. The episode was written by Steve O’Donnell and directed by Steven Dean Moore.
Along with the majority of Springfield, Homer and company are lured into the Movementarian cult by a slick pamphlet and tantalizing promises. But as Marge begins to realize that the cult only has money on its mind, she must try her hand at deprogramming to rescue her family.