It is the day of the Crowley High Semi-Formal and the gang has a lot on their minds. Jenny and Todd try to solve the mystery of the Metal Dudes, while Curtis and Hannah head to the retirement home to uncover what Atticus has in store for everyone.
A paraplegic's wish to join the high school track team results in Todd traveling to the future where he sees what the world would be like if he's no longer part of it.
The gang decides to attend a house party as they believe all that teenage angst will be a breeding ground for book activity. Unbeknownst to them, Atticus is also there to recruit new minions into his society.
Charlotte, the Phantom of Crowley High returns to reclaim Curtis for herself by swapping lives with Hannah.
As Hannah and Todd bicker over how to celebrate Curtis' upcoming birthday, a student creates a carnivorous birthday cake to compensate for the birthday celebrations that she never had due to her strict religious beliefs.
When Todd accidentally destroys all of the A/V club's equipment, the school's only two members exact their revenge by using the book to gradually turn Jenny against him.
After accusations of Jimmy peeping on students in the locker room gets him fired by Atticus, Todd leads the gang on a quest to clear the former janitor's name by finding the real perpetrator.
Humiliated by Todd and Curtis, a fellow student traps the gang in a live action version of the videogame, Fisting Fantasy 8.
An environmentalist gets ticked off by the littering occurring at the high school and uses the book to turn the school and everyone prehistoric.
When the cheerleaders begin vanishing from the school hallways, leaving only the shredded remains of theiruniforms behind, the gang becomes convinced that they've beendevoured by a mysterious creature simply called "The Beast."
When Jenny's father comes out of his coma, he tries to join the gang. But being rejected has made him use the book to steal people's skin and disguises himself as whatever male student he becomesto infiltrate the gang.
Todd breaks up with the Gang, but intervenes when they join a dangerous new social group.
Todd, Curtis andHannah attemptto rescue Jenny from the Satanists at the retirement home. Meanwhile, when Atticus' minion Bob uses the book to create a feast that makes everyone who eats it hungrier, they are forced to fight the senior citizens ravenous for human flesh.