After Homer accidentally pollutes the town’s water supply, Springfield is encased in a gigantic dome by the EPA and the Simpsons are declared fugitives.

Bobby (a newcomer to the school) begins a relationship with Noreen, a popular girl. Noreen’s brother is displeased by this romance, and brings a gun to school in order to…

After Homer accidentally pollutes the town’s water supply, Springfield is encased in a gigantic dome by the EPA and the Simpsons are declared fugitives.