Overview
"Preschool" is the tenth episode in the eighth season of the American animated television series South Park. The 121st episode overall, it originally aired on Comedy Central in the United States on November 10, 2004. In the episode, Trent Boyett, the boys' arch-enemy from preschool, is released from juvenile hall and seeks revenge after taking the blame for starting a fire that permanently disfigured their preschool teacher. Several plot elements reference the 1991 film Cape Fear as well as the Star Trek episode "The Menagerie".
Plot
A horrified Stan announces to Kyle, Kenny, Cartman, and Butters that Trent Boyett, a notorious bully from their preschool years, is being released from juvenile hall after a five-year sentence. In a flashback set five years previously, the boys express interest in playing "fireman", a game in which they extinguish a fire by urinating on it. Wanting to put out an actual fire, they ask Trent to start one. However, the fire soon becomes uncontrollable and their teacher, Miss Claridge, is badly burned. Instead of going the easier way by saying that the fire was an accident and risking punishment, the four boys immediately place the sole blame on Trent. Trent attempts to have Butters defend him, but Butters, afraid of potentially being punished by his parents, declines to explain the truth, and Trent is sentenced to juvenile hall.
Now free, Trent seeks revenge. For not defending Trent despite his innocence, Butters ends up hospitalized after sustaining numerous severe injuries from Trent's childhood pranks, while his parents refuse to acknowledge that their son is in danger. Aware that this is Trent's way of warning them, the boys ask the sixth-graders for protection, which they agree to in exchange for a photo of Stan's mother's breasts (which are actually Cartman's buttocks with nipples drawn on with a black Sharpie, using Madonna’s book Sex as a guide). After Trent overpowers all of the sixth-graders, resulting in them being hospitalized with various severe injuries, the boys ask Stan's sister, Shelley, to defend them.
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