As Bart and Homer make their way through an electronics store, Homer searches for a new battery for his camera. Bart stops at the big-screen television department, where he belittles a scene from the movie “The Flags of Our Fathers.” When Homer catches up to him, he admits he didn’t buy a camera battery after all: he spent his money on a TiVo system. Homer and Bart return home, where Lisa installs the TiVo. It doesn’t take long for Marge to become addicted to the commercial-free programming she can watch. One night she falls asleep in front of the television, and dreams she’s having a conversation with Keith Olbermann. He makes her feel guilty for skipping the commercials. Marge tries her best to make restitution by watching lots of advertisements. She and the family take a particular interest in an ad for Wes Doobner’s World Famous Family Style Rib Huts. The Simpsons drive to the restaurant, but once they step inside they are confronted by Sideshow Bob. He announces that the commercial was part of an elaborate hoax to lure them to their doom.

Sideshow Bob subjects the Simpsons to a slide show detailing the events that have taken place since they last saw one another. It turns out that Bob and his family fled Rome, and made their way to England. Bob worked as a chimney brush, but never stopped plotting his revenge. He ended up in America, where he produced the commercial that lured the Simpsons to the restaurant. Bob intends to kill the family by having a defective laptop battery explode, triggering some TNT. Lisa outsmarts Bob with some Shakespeare trivia, and the laptop blows up in Bob’s face. Bob is placed under arrest, and jailed. During the trial Bob represents himself in court. As his first witness Bob calls his father to the stand. Robert Terwilliger testifies that his son was normal until Bart began tormenting him. Bob accuses Bart of being the real culprit. Bob, who suffers from a congenital heart defect, pulls out a bottle labeled “nitroglycerin.” Fearing Bob is up to his old tricks, Bart grabs the bottle away. It turns out the substance is used to control his heart defect. Bob falls over, dead.

Sideshow Bob’s family (including his brother Cecil) attends the memorial service. The Simpsons also attend, but Bart insists he doesn’t have anything to be sad about. Cecil tells Bart that he’ll only find happiness by making peace with his brother. He suggests that a visit to the funeral home is in order. When Bart approaches the casket Sideshow Bob suddenly hops out, throws Bart inside, and slams the lid shut. It suddenly occurs to Lisa that Sideshow Bob wanted to be captured at the restaurant all along. When he collapsed in the courtroom, his father injected him with a drug that simulated death. Back at the funeral home the casket Bart is trapped in slowly heads toward the crematorium oven. Bob boasts that he’s pulling off the perfect crime: everyone will think Bart’s ashes are his own. Suddenly the Simpsons rush inside the funeral home, and Homer pulls Bart to safety. Lisa says she grew suspicious when she noticed the casket had extra room built in for Bob’s big feet. Bob and his family try to make a getaway, but their car collides with a truck and crashes into a store that sells rakes. Bob and the others try escaping on foot, only to be deterred when they step onto the rakes and are hit by the handles. Now confined to a cell for the mentally ill, Sideshow Bob dreams of popping out of a cake and slashing the Simpsons to pieces. Bob’s family passes the time by playing bridge.