When Bart is forced to assist Principal Skinner in early-morning astronomy observations, he discovers a giant comet heading towards Springfield. Facing impending doom, the entire town shows up at the Flanders family bomb shelter.
Released: Dec 17, 1989
Runtime: 00:26:14 minutes
Genre: Animation, Comedy
Stars: Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer