Heidi is an orphan and comes to live with her grandfather when she is give years old. Grandfather's house is among the tall mountains, surrounded by beautiful meadows. Soon Heidi begins to love her life here with the goats she looks after, her new friend Peter, his blind grandmother who dotes on Heidi and even her stern grandfather. But one day, she is taken far away from all of this to Frankfurt, a busy city where she can neither see the sky nor walk about as she pleases.