The Numberjacks are a group of anthropomorphic numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Only four of them team up on a mission: 3, 4, 5, and 6. They go about their everyday lives inside their sofa until a call comes in from real-life child Agents, who report problems that need solving. One or two Numberjacks fly out on location to investigate. The Numberjacks have to work out how to put things right, and thwart the dastardly intentions of the five Meanies. After much fun, adventure and powerful thinking, the Numberjacks win the day - until next time.