Meet Messy, a sock-eating monster who loves jokes and science. Each storybook is a new Messy adventure based on his search to find the answer to an everyday question about science. Why do things float in space? How does rain make flowers grow? What happens to food inside our bodies? Messy travels through a magic vortex to the land of OKIDO to meet his gang of friends - the children Zoe and Felix and the robotic scientists Zim, Zam and Zoom - who help him find out the answer. There's plenty of silly fun along the way!