When Heidi's parents die and she can no longer live with her aunt, she must stay with her ill-tempered grandfather, who lives alone in the Swiss Alps. Heidi thrives in the mountains as she plays with the mountain goats, picks wildflowers, makes new friends, and brightens her grandfather's life. Then Heidi is taken away to serve as a companion to a lonely girl. Will she ever get back to the mountains and people she loves so much?