Homer and Bart return from the video store with a copy of Joshua Logan’s Paint Your Wagon, starring Clint Eastwood and Lee Marvin. Bart pops the tape into the VRC, anticipating a bloody Eastwood shoot-’em-up. But he and Homer grow dismayed when they realize the film is a big, lumbering musical filled with dance numbers. Bart ejects the tape, allowing it to fall into a waste paper basket. Breaking into song, Homer tells Lisa how much he dislikes musicals. The rest of the family also breaks into song. Marge reminds Homer and Bart of musical moments from their past, and shows them family videos to prove her point (which includes clips from Baby on Board, We Put the Spring in Springfield, and Springfield, Springfield). Suddenly, a singing Snake jumps into the house and points a gun at the family.

Snake observes the singing family, and, concluding they are all too “weird” for hostage-taking purposes, leaves just as suddenly as he appeared. Lisa then notes that there are other townspeople who have flexed their vocal prowess over the years (in such clips as Who Needs the Kwik-E-Mart, See My Vest and Send in the Clowns). Suddenly, Snake jumps back in the window. He complains of an incessant musical tune in his head and, cocking his shotgun, reasons that the only way to make it stop is to eliminate the family.

Snake pulls the trigger on the shotgun, only to realize the weapon is empty. He vows to return with ammo. During his absence, Marge and Lisa conclude that the entire town “runs on a tune” (we then see a clip from Monorail Song). Suddenly, Snake jumps back in the window and threatens to make good on his promise. But Marge tells him the family has finished singing. Snake disappears out the window once more.