Movementarians
The Movementarians are a brainwashing cult, which for a brief time ensnared many of Springfield's citizens in the episode "The Joy of Sect", making them sign over their savings and houses and then work picking lima beans. The Movementarians are led by a mysterious figure known as "The Leader", who promises to fly them to a planet called Blisstonia by a space ship. It is later shown that the spaceship is a pedal-powered aircraft with The Leader flying it. He tries to depart with everyone's money, but The Leader crashes on Cletus Spuckler's front porch. Cletus then relieves the Leader of the town's money at gunpoint.
Read more about this topic: Religion In The Simpsons