The film opens in documentary style at the elementary school in Siligo that six-year-old Gavino (Saverio Marconi) is attending. His tyrannical peasant father (Omero Antonutti) barges in and announces to the teacher and the students that Gavino must leave school and tend the family sheep. Under his father's watchful eyes and the victim of his sadistic behavior, Gavino passes the next fourteen years tending sheep in the Sardinian mountains. There he begins to discover “things” for himself and to rebel against his father.