In a lush forest of the Pacific Northwest, a boy named Pete has lived for six years alongside a dragon named Elliott, who is more than just a creature: he is Pete's best friend and protector. Ever since he lost his parents in a car accident, Pete found refuge in the magical company of Elliott, a green dragon with the ability to become invisible and a big heart. His life in the forest, away from civilization, unfolds in harmony until one day, a search by a local family reveals his existence.