When Heidi is sent to live in the Swiss mountains with her bad-tempered old Grandfather, everyone in the village feels sorry for her. What will a little girl do in such an isolated home, and with such a grumpy companion? But Heidi soon discovers a secret: Grandfather isn't nearly as cross as he looks - plus she can play all day in the fields among the bright flowers. But then Heidi is whisked away again to be a companion to a injured girl in the city. She longs for her beautiful mountain home - how will she ever get back again?