In this hilarious follow-up to School of Fear, eccentric headmaster Mrs. Wellington demands requests the presence of Madeleine, Theo, Lulu, and Garrison for a mandatory summer of retraining after discovering that each of her former students has secretly regressed. Facing their fears was terrifying enough, but when the foursome learns they'll be joined by a fifth student, things start to get even scarier.

To make matters worse, the students quickly find themselves tasked with saving their school. And because failing means spending the rest of their lives with unresolved phobias, this is one test they all plan to ace.