Ms. Linda's cousin, the Hollywood agent Lucy LaRoux, gives each student in Classroom 13 the opportunity to become famous, but the students learn that with great celebrity comes stage fright, injury, bad press, and giving up video games.

Tired of being left out of everything, Classroom 13 itself puts out a bowl of cursed candy on Halloween that changes everyone into the costume he or she is wearing.

After being struck by purple lightning, Ms. Linda and her students gain superpowers and in an effort to save the world, they nearly destroy it.