As a young orphan, Heidi is brought to live with her gruff grandfather in the Swiss Alps. There, the bright and cheerful girl soon wins his heart and befriends their neighbours, including the young goatherd, Peter. One of the bestselling books ever written, Heidi tells the heart-warming story of a young girl growing up in the mountains, her experiences of unfamiliar city life while caring for a sickly child named Clara, and the lessons she learns along the way.