When endlessly curious Chang discovers a bear farm near her home in Vietnam, she decides to do everything she can to save wild animals - by becoming a conservationist! After teaching herself survival skills and learning all she can about the rainforest, Chang is finally accepted as a rescue centre volunteer. But her toughest challenge yet comes when she makes a vow to return Sorya - the sun bear she raised from infancy - back to the wild. Because despite being a different species, Sorya is Chang's best friend. And letting a friend go is never easy, even when it's the right thing to do.