Cartman is excited, since he got his pubes before the other boys. Of course Kyle, Kenny and Stan think he's a dumb ass, since he bought them from 8th grader Scott Tenorman and paid $10. Cartman tries to get his money back, only Scott Tenorman keeps getting the better of him, including sending him to Fort Collins for "Pubefest." Cartman vows to get his revenge.
Cartman tries to rally the other kids to help him in his revenge. Cartman has a plan where he trains a pony to bite Scott's wiener off. Stan's Uncle Jimbo gives Cartman advice on how to get back at Scott Tenorman. Find his weakness and exploit that weakness. Under surveillance, Cartman discovers that Scott likes the band Radiohead. Cartman gets Scott downtown, where he plans to show a video of Radiohead saying that "Scott Tenorman isn't cool"; while the crowd sees that, it doesn't go over as big as the video Scott shows of Cartman acting like a little piggy. Cartman works out a master plan for revenge.
Cartman's master plan is to combine both of his plans, the wiener biting pony and humiliating Scott in front of Radiohead. Radiohead receives a letter from Cartman, telling them about his friend Scott who has "cancer in his ass" and they decide to come to South Park. Meanwhile, Cartman invites Scott to participate in the "Chili Con Carnival" and Stan warns Scott about the pony. Scott creates a chili filled with pubes.
At the carnival Scott reveals his secret ingredient, which Cartman anticipated. He also anticipated Stan & Kyle's betrayal about the pony, which leaves him to reveal the secret ingredient in the chili that Scott is currently eating, a chili called "Mr. & Mrs. Tenorman Chili." Scott breaks down and cries, just as Radiohead arrives calling him "totally not cool" and Cartman has his revenge.
Kenny dies from laughter when the video of Cartman acting like a little piggy is shown.