Messy, a monster, explores science questions that children ask about the world around us. Messy the monster hears a chirping songbird outside his window, but he can't understand what the bird is saying. He goes to OKIDO to find out why all things can't just simply talk the same.

Messy, a monster, explores science questions that children ask about the world around us. Someone pass Messy the tissues! He discovers that things just don't taste the same when he has a cold, especially his favourite chewy green socks - let's find out why.