While Mr. Burns is hospitalized, an investigation into his shooter begins; although Smithers initially suspects himself, a trace of Simpson DNA narrows down the list of possible culprits.
A Hollywood film crew shoots an adaptation of the "Radioactive Man" comics in Springfield, with Rainier Wolfcastle in the title role and a reluctant Milhouse as his sidekick, Fallout Boy.
A lightning storm causes giant advertising mascots to come to life; The children are terrorized by Groundskeeper Willie in their dreams; Homer finds himself trapped in another dimension.
Homer intentionally gains more weight in order to qualify for disability and work from home, but soon realizes that being morbidly obese comes with its own problems.
Sideshow Bob escapes from prison to hijack a TV screen at an air show and demands that all television stations immediately go off the air, or else he will detonate an atomic bomb.
Troy McClure hosts a retrospective of the Simpson family's first eight years on television, including early shorts, classic highlights and never-before-seen outtakes.
Homer starts a bowling team with Moe, Apu and Otto, but Mr. Burns insists on joining after learning that the team was funded with his money; Springfield Elementary introduces uniforms.
After buying a Chanel suit at a bargain price, Marge is invited to a country club by a former schoolmate, where she desperately tries to fit in with its upper class clientele.
After surviving multiple assassination attempts by Mr. Burns to inherit a cache of artwork they stole from the Nazis, Grampa teams up with Bart to recover the paintings.
Anti-immigration fever sweeps Springfield, which threatens to lead to the deportation of Apu, until Homer decides to reject the mob mentality and help him become a legal citizen.
Homer takes Bart and Lisa to a music festival in an attempt to prove his coolness, but ends up embarrassing them after being hired to participate in the festival's freak show.
