What if you could take make believe and make it real?

It's the summer of 1988 and little is normal about Will and Sandra, except for the name of their town, Normal, Illinois. The two precocious eight-year-olds share overactive imaginations, a love of baseball and genuine affection for each other. But over the course of a single, fateful week at the beginning of their summer vacation the duo discovers budding superhero powers.

Each day is a new adventure and an excuse for them to get on their bikes and enjoy being kids. Down the street from where they live is a spooky old house. An elderly woman and her older brother live there along with an overly protective dog that barks at the kids, frightening them as they pass by the house on their bikes. Children in the neighborhood believe the old lady is actually a witch and the old house is haunted. And there's a rumor that she keeps kids locked in her basement.

Sandra helps Will overcome his lack of confidence. Will convinces Sandra to stand up to her mother and become what she wants to be. Together, they use a map/maze that Sandra created to explore their imaginations, taking a detour through a fantastic world where they serve as fairy royalty. But when reality rudely intrudes on their idyllic world, Will and Sandra unlock their true potential as a crime fighting team when they are forced to save the day from two dangerous men.