When Homer realizes he doesn’t have any money to buy beer at Moe’s, he sets about finding alternate ways of altering his consciousness, such as breathing thin air, giving blood and licking toads. Wasted, Homer returns to Moe’s bar, takes a sip of beer and becomes unruly. Afraid he might be held liable if Homer drives home in an inebriated condition, Moe hails a cab. The next day, Marge has to remind a clueless Homer that he came home drunk. As the family sits down to watch television, they happen upon a reality show called Taxicab Conversations, which uses hidden cameras to capture passengers at “their most vulnerable and uninhibited.” The episode shows Homer getting into the cab that Moe hailed at the bar. But as the hidden cameras roll, Homer laments that getting married and having kids torpedoed his dreams of becoming a rock star. Marge, Bart and Lisa’s glare shifts from the TV screen to Homer.

The angry family chastises Homer for resenting them. One by one, they storm out of the room. The next afternoon, as Homer finishes up work, Marge and the kids screech up in the car and tell Homer to get in. They drive him to a deserted location on the outskirts of town, causing Homer to fear they mean him harm. But when Homer looks out the window, he sees a sign that reads, “The Rolling Stones Rock ‘n’ Roll Fantasy Camp.” When Homer enters the compound, he comes upon a group of other campers, including Wiggum, Otto, Apu and Barney. Mick Jagger and Keith Richards appear and welcome the group, encouraging them to get a good night’s sleep. But Homer swallows some pills he found on the floor and ends up staying awake all night.

The next day, the group of campers make their way to the instrument shack, where Elvis Costello tosses guitars to everyone. The next stop is the wardrobe shed, where Lenny Kravitz helps them chose the right look. Finally, Homer and the others make their way to a cabin, where Brian Setzer teaches them the essentials of playing a burning guitar with their teeth. Next, Mick Jagger teaches the campers how to induce crowd frenzy. That night, the group gathers around a campfire and listens as Tom Petty explains the intricacies of songwriting. The following day, Keith Richards teaches the group what to do when the concert ends and screaming fans threaten to keep them from escaping. Once the lessons end, the group of campers appears on a makeshift stage, where they perform as rock stars. Despite the wretched results, Jagger tells Homer that he rocks. But when Marge stops to pick Homer up, he doesn’t want the fantasy to end.

The Simpsons struggle to pull Homer away from the bunkhouse where he had been staying, but at first, he refuses to go home. Mick Jagger happens by and tells Homer to cheer up, as it was only a fantasy. When Homer begins sobbing, Jagger gives Homer the opportunity to appear on stage with the group during an upcoming benefit performance. Homer excitedly embraces the offer. As show time nears, Marge and the children take their seats, anticipating Homer’s big moment. But when Homer approaches the other musicians backstage, they react blankly when it becomes clear that he thinks he’ll be playing with them. Jagger tells Homer that what they need him to do is check the microphones to make sure they’re working. Crushed, Homer walks glumly on stage. But when people in the audience start to applaud, Homer launches into song as the rock stars watch in horror off stage. Unwilling to let Homer steal the spotlight, Jagger and the other singers climb aboard a large, motorized devil’s head and begin chasing Homer around the stage. But Jagger loses control and the devil’s head careens into a terrified crowd of concertgoers. Later, the rock stars apologize for their behavior and invite Homer to join them at a benefit gig for the injured concertgoers.