The 4 season of Numberblocks was broadcast on CBeebies from lundi 10 juin 2019 to vendredi 16 août 2019. It consists of 30 episodes, the first one is called "Fifteen's Minute of Fame" and the last one "More to Explore".
The adventures of ten friends, in Numberland who can always count on each other. Each friend has a different ability that helps them on their adventures.