When her father becomes trapped in a tunnel on a construction site far from home, Mia decides to leave her village to look for him. Trekking through the vast and mysterious forest, Mia finds herself face-to-face with the Migou, a large, unusual species charged with protecting a powerful and important tree - a tree threatened by the same construction site that has endangered the life of her father. Featuring exquisite painterly animation, Mia et le Migou weaves a message of environmental responsibility into an imaginative world filled with fantastic creatures and one brave little girl.