Comedy adventure series, aimed at four- and five-year-olds, in which animated numbers solve mathematical problems in the real world, with input from real children. Numbers 0,1,3 and 4 are playing hide and seek. Numbers 3 and 4 are doing well but they can't find 0 or 1. The Agents call in with a huge problem - a boy has 10 grumpy mums! Number 5 goes out to find out what's going on.