According to Stanley's second grade teacher, Ms. Root, everyone in classroom 2E is a scientist. That's good news for Stanley because he has a problem in need of solving! Both his classmate, Josie, and his little brother, Arthur, think he's been using his flatness to cheat during playground games. But Stanley can't help being flat! It's time to test how flatness affects Stanley on the playground. Will science be on his side?

The science fair is coming up, and everyone's been working crazy hard to get their projects finished on time. But at the beginning of the week, projects start disappearing only to be found later completely destroyed. Chase gets an anonymous invitation that sends him in search of the missing projects. Now the fate of the science fair rests in his hands as he tries to stay one step ahead of the culprit.

For the first time in years Eerie Elementary is planning a science fair, which may not be a good idea in a school which is alive and out to get the students--but when Sam and his friends find a book of experiments that contains all of Orson Eerie's notes, it may turn out to be the key they need to finally understand the mad scientist.