Hector and his friends wonder about their school's lunch lady. What does she do in her off hours? Soon they find out that their Lunch Lady is a superhero(ine). She and her sidekick, Betty, serve lunch by day and justice by night, armed with food-related gadgets and weapons (such as a hairnet for catching bad guys). In this first book in the series, the Lunch Lady suspects a substitute teacher is not who he says he is, and the kids are picked on by the class bully. Lunch Lady to the rescue!