Pete, a boy is found in a forest. Apparently he’s been living there for six years after an accident took his parents. A ranger named Grace decides to take him in and when she asks him how he survived all by himself, he says he had a friend, Elliot, with him. He draws a picture of Elliot and it’s a picture of a dragon. Grace takes the picture to her father who claims that years ago, he encountered a dragon in the forest. Grace takes Pete back to the forest and he shows them where he lives and Elliot. A man saw Elliot and when he tells about his experience and is not believed, he sets out to prove it by capturing the dragon.
该片根据1977年经典真人动画歌舞电影《妙妙龙》改编，罗伯特•雷德福、Bryce Dallas Howard、Wes Bentley等参演，讲述小男孩Pete为逃离贪婪的父母而离家并在路上结识了忽隐忽现的妙妙龙Elliott，并一起流浪的故事。