In this new and unforgettable adventure, Tainá will train alongside the ancient and wise Master Aí to become the Guardian of the Amazon. But when she loses the Blue Arrow, she puts her future at risk. While trying to recover the Blue Arrow, Tainá will meet her inseparable friends: Catu, Pepe, and Suri — together, they will become the “Guardians of the Amazon.” So different from one another, they must learn to overcome their differences and value friendship in order to fulfill their mission: to find the Blue Arrow and prevent a great evil from burning the forest and destroying the entire Amazon.