In the story, the wise Master Aí is responsible for training young Tainá to one day become the Guardian of the Amazon. And in this adventure, she will meet special friends: Catu, Pepe, and Suri. Different and inseparable, the quartet embarks on a journey in search of the Blue Arrow, an ancestral amulet that will guide their path so that they can guard and protect the forest from a great evil that puts everyone in danger.