After her aunt is offered a position as a maid in Frankfurt, she takes Heidi to live with her Grandfather in the mountains. This causes quite a stir among the village folk. On the way, Heidi befriends Peter, the goat herder, before finally introducing herself to her grandfather
In Frankfurt, little Heidi, who longs for the mountains, feels increasingly trapped. To escape this depressing feeling, she makes a habit of leaving the Sesemann house to explore. On her way, she meets a little boy playing the barrel organ.