The Numberjacks, superhero numbers, journey out into the real world to investigate problems and battle against the dastardly intentions of the Puzzler, Spooky Spoon and the Numbertaker.

Amidst much slapstick comedy and numerous thrills, children join in and develop their early maths skills, helping the Numberjacks to win the day.

Episodes:
- Sphere Today, Gone Tomorrow
- One More Time
- Getting Heavy
- Nine Lives
- One Won
- Best Estimate