Overview
"The Return of the Fellowship of the Ring to the Two Towers" is the thirteenth episode of the sixth season of the American animated television series South Park, and the 92nd overall episode of the series. It originally aired on Comedy Central in the United States on November 13, 2002. In the episode, the boys dress up and play as characters from The Lord of the Rings film series, with several events and characters substituted into the narrative. They extend their game into a "quest" to return a copy of the film to a local video store. Meanwhile, the adults have accidentally switched the tape with a pornographic film.
The episode was written by series co-creator Trey Parker. Both Parker and co-creator Matt Stone have repeatedly referred to it as one of their favorite and strongest episodes of South Park.
Plot
The episode opens with Stan, Kyle, Cartman, and a disembodied Kenny (sharing Cartman's body) playing "The Lord of the Rings." Stan's parents have rented the movie The Lord of the Rings (specifically, The Fellowship of the Ring), and tell Stan, Kyle & Cartman to bring it to Butters' parents, as they had asked to borrow it. Still caught up in their game, the boys see this assignment as a "quest", and set off on their journey. Stan's parents attempt to watch a pornographic movie, but discover Randy mixed it up with the Lord of the Rings tape, and realize that Butters is now watching it at his house.
The two drive to Butters' house, and come across the boys returning home, having already delivered the tape. Stan's father plays into the boys' imagination and sends them on their greatest quest ever: retrieve the tape, but do not look at it as it "holds an evil power." Excited, the boys eagerly comply and set off toward Butters' house. They arrive and take the tape, but not before discovering that Butters, though not realizing the nature of it, has watched the movie and becomes obsessed with it, even wondering aloud, "What's happenin' down there?" (in reference to his groin) before the other boys arrive. Excluded from the game and denied the video, Butters becomes steadily more insane, and remains secluded in the basement, muttering about his "precious" and generally acting like Sméagol/Gollum. At this point the Marshes, who have grown worried that the boys have not returned, show up. Distraught at Butters' behavior, they assume that the boys now have the tape and are watching it.
From Wikipedia (CC BY-SA 4.0).