Heidi celebrates her birthday with her friends and her mother. The hunter also comes to the birthday party with a gift from her grandmother, a red cap. At the same time, he has to break the sad news to Heidi that her grandmother is ill. Heidi puts on the cap right away and is henceforth called "Little Red Riding Hood." Since her grandmother couldn't come to her birthday party, Heidi decides to go to her to bring her cake and wine and cheer her up so that she can get well again quickly.