Steven Carter is a 10-year-old boy who receives a quadrillion dollar bill from his dying friend Mr. Chickee, which puts a target on his back from Agent Fondoo who wants to steal it. With help from his friends Russell and Zoopy, Steven tries to avoid obstacles and solve mysteries to protect the bill from being stolen. The main idea of the story is about the quadrillion dollar bill and the lesson that one should not steal from others.