Mr. Burns goes undercover as "Fred" at the nuclear power plant and becomes friends with Homer and the gang. Burns implements all sorts of amenities to improve his employees' lives, but a jealous Smithers plots to bring the old, bitter Burns back and destroy Fred.

Lisa stays home from school to explore the wonders of Western art. She appears as Lisanardo, while Bart takes the shape of a French impressionist, Homer and Marge as Diego Rivera and Frida Kahlo, and Maggie as a warrior Cupid.