Caio is a smart Koala that has put all his efforts to construct a model for his school project. Garrão, jealous by the attention Caio is receiving, brakes the model and Caio thinks that was his brother, Caco, that has broken. After that, Caio leaves his house and goes for a new life in the wild. There, he meet Mônica, a Blue Arara. Caio will help Mônica in the search for her sons, while Caio's family searches for him.