The family endures a comedic torture scene with nipple spikes and blood.

A shooting star lands, and Homer eats green alien goo.

Homer morphs into a giant hungry blob after eating the goo.

Homer as blob consumes food, people, and objects uncontrollably.

The blob attacks Springfield, causing chaos and destruction.

Homer sings a song about eating fat people while rampaging.

Lenny and Carl comment on the blob attack and Lenny's giant form.

Marge and family try to reason with Homer as blob.

Homer uses blob to house homeless people.

Krusty announces HDTV and Bart complains about a faulty alarm clock.

Bart discovers the Golem of Prague in Krusty's prop room.

Bart takes the Golem and uses it for his own purposes.

Bart uses the Golem to attack school bullies.

The Golem speaks and expresses guilt over his actions.

The Golem attacks Principal Skinner on Bart's orders.

Bart and others try to fix the Golem's guilt by giving him a girlfriend.

The Golem marries his girlfriend but is arrested for murder.

The story shifts to 1930s Springfield during the Great Depression.

Orson Welles' radio broadcast causes panic in Springfield.

The townspeople realize the broadcast is a hoax and feel foolish.

Real aliens invade but townspeople think it's another hoax.

Aliens conquer Springfield as residents ignore them.

Aliens report their occupation and the episode ends with a song.