Jimmy and Timmy ask the boys if they will come and cheer for them at the Special Olympics next Saturday in Denver. Jimmy and Timmy are at the training center and on his way to the locker room Jimmy is approached by someone who offers to sell him steroids. Jimmy decides to try them as a "performance enhancer." Cartman finds out that the winner of the Special Olympics will win a prize of $1000. Cartman thinks it would be easy for a normal person to win the prize. The boys think it is terrible what Cartman is planning to do, Kyle threatens to tell. In a musical montage, Cartman begins working on what it will take for him to become a competitor in the Special Olympics. Meanwhile, Jimmy has become hooked on steroids and no one, not even his new girlfriend Nancy has found out. Cartman tries out his new look on the Kyle, Stan and Kenny. Kyle tells him that he needs a parent to be with him to sign up for the Special Olympics. He tries to get his mother to help him sign up; he tells her a really good lie and she agrees to go with him. In the locker room Jimmy's bag falls over and his steroids fall out, right in front of Timmy. Jimmy tries to justify his use of steroids, but Timmy isn't buying it.
Timmy is training hard and Jimmy is ready to break some records with his improved performance. Cartman gets his mother to sign him up and Timmy sees Jimmy shooting up steroids. Timmy goes to see Mr. Mackey and tries to tell him about Jimmy's steroid use, although Timmy's only words "Timmy" and an occasional "Jimmy" doesn't help to get his message across. Kyle goes to see Cartman and expresses his feelings that he has a moral problem with what Cartman is planning to do and well as finding it offensive. He tells Cartman that he is really going to hell this time. Cartman again tells Kyle, who hasn't yet seen "The Passion…" where it was revealed that hell is reserved for the Jews and non-believers in Christ. Kyle is left speechless by Cartman's last comment. Bigger, due to his steroid use, and wearing a "wife beater t-shirt" Jimmy starts beating on Nancy (and later his own mother) when she stops by to talk to him about missing their date. The steroids have unlocked an emotional rage within him.
The Special Olympics get underway. Cartman participates in his first event and loses by a large margin as he does in every event in which he competes; meanwhile to Timmy's disgust Jimmy is winning (and setting records in) every event in which he is competing. At the end of the day, Jimmy is given the big award by Mark McGwire, Jason Giambi and Barry Bonds. Cartman is going to be given the Spirit Award (a $50 Shakey's gift certificate) for coming in last in every event. Jimmy knows that Cartman isn't special and is disgusted that Cartman would try cheating to win. Then Jimmy sees the look in Timmy's eyes after he's made that statement. Jimmy confesses his steroid use and insists that all he did today be stricken from the record; he further comments that anyone with steroid enhanced records should also do the right thing and come clean. Cartman tries to play off to the others that the only reason he did what he did was to help Jimmy learn his lesson about steroids. They of course don't believe him.