When Adam wakes up in a dark tunnel with no memory of who he is, he finds himself trapped on the strange and puzzling Planet Numberth. Armed with only a mysterious calculator, he must solve a series of mathematical challenges against the likes of The Oddtopus, Mr. Bonds and The Multiguys. But Adam isn’t alone. The musical Number Crunchers and a friend, Millie, are there to help as he attempts to complete the challenges and get back to his home planet. Can Adam unlock the power of mathematics before it’s too late? Or will he be trapped in Numberth forever?