Adelheid (familiarly known as Heidi) is a girl who has been raised by her aunt Dete in Maienfeld, Switzerland after the early deaths of her parents, Tobias and Adelheid. Dete brings 5-year-old Heidi to her grandfather, who has been at odds with the villagers for years and lives in seclusion on the alm. He at first resents Heidi's arrival, but the girl manages to penetrate his harsh exterior and Heidi subsequently has a delightful stay with him and her best friend, young Peter the goat-herd.