Watch on Soap2day. Heidi, a young orphan girl living with her aunt in Frankfurt, is forced to move to the Swiss Alps to live with her ornery grandfather. At first, he resents her presence, but, after a short while, Heidi manages to pierce his gruff exterior, and the two become close. She also befriends a young shepherd named Peter. After three years, Heidi's aunt arrives and demands Heidi's return to Frankfurt.