The boys are playing shuttlecraft "Spontaneity" in the new minivan that Cartman's mother has purchased. They go on an away mission and Cartman, as usual, gives Kyle a hard time about being a Jew, in this case a "Vulcan Jew." Cartman again tries to Kyle that in the movie "The Passion…" that the Jews are the devil, he's seen the movie 34 times and he knows that the Jews had plenty of opportunity to save Jesus, but didn't. Stan and Kenny are tired of hearing them argue about the film and they decide to leave. Cartman tells Kyle that he is scared of learning the truth about the Jews. Kyle debates and then decides to go and see the movie for himself. He endures the film and its depiction of the final hours of Christ's life. When he leaves the theatre, he wonders how the Jews could have done that to Jesus. He goes to Cartman's house and tells Cartman "he was right," a statement that Cartman relishes. Cartman prays to a picture of Mel Gibson (in "Braveheart") and promises to organize the masses and spread the word about "The Passion…" Stan and Kenny decide they need to see the film, but their feeling about the film is that it sucked and they want their money back. Stan calls it a "snuff film" and the guy at the box office tells them to go see the producer of the film if they want to get their money back; meanwhile Kyle is having nightmares about the film. Stan and Kenny try to get in contact with Mel Gibson by calling a 1-800 number they've found on a website. Stan dials the number which brings him in contact with someone who is running "Mel Gibson's 'The Passion' Fan Club," and they want to know how to contact Mel and get their money back. The guy on the phone, who Stan realizes is Cartman isn't any help other then telling them that Mel Gibson lives in Malibu. Stan decides that he and Kenny need to go to there, because it's no longer about getting their money back, it's about holding the filmmaker responsible, just like how they got their money back for "BASEketball."
Cartman is dressing in a brown uniform and getting ready for the meeting he is holding in his backyard. People have gathered in the yard to celebrate their rediscovery of their Christianity. The eight-year-old that is holding the meeting has some different ideas. Cartman suggests those in attendance take one more person to see "The Passion…," before they begin the cleansing. Out in Malibu Stan and Kenny make their way into Mel Gibson's mansion. They see the man himself, but Mel Gibson starts going "daffy" while telling them that he won't be giving them their ticket money back. Back in South Park, Kyle talks with Father Maxi about Jesus and his Jewish friend can do with his guilt. Father Maxi suggests "atonement" for Kyle's friend, which gives Kyle an idea. Stan and Kenny manage to get their money and escape from the lunatic Mel Gibson. In a rally outside the theater where "The Passion…" is being shown Cartman begins speaking German and his crowd of followers mistake his words for Aramaic, the language spoken in the film. He gets the crowd to march after him speaking the phrase "Wir müssen die Juden ausrotten."
Kyle goes to his temple and suggests to the gathering that the Jewish community needs to apologize for the death of Jesus. Kyle's parents and the others are disturbed by the effect the movie is having on people. The rabbi suggest that we live in a rational society, where people will realize it is just a movie; however, after he makes that statement outside the temple Cartman is seen goose-stepping with his followers down the street. Meanwhile on the bus back from Malibu, Stan realizes that Mel Gibson is chasing after the bus to get his $18 back. The Jewish congregation marches on the theater and demands that the movie be removed from the theater, while Cartman and his group come from the other direction. Their dialog about the film is interrupted by the arrival of Stan and Kenny's bus being chased by Mel Gibson. Gibson's tanker truck explodes in front of the theater. Cartman sees Mel and tries to offer the services of his following, but Mel is has gone off the deep end. Seeing Mel's behavior makes Kyle wonder why he was freaked out by that guy's movie. Stan makes a point about what Christianity should really be about, which the crowd finds agreeable. In the end Mel Gibson lets Cartman know what he really thinks.