1) The film tells the story of Antoine Doinel, a troubled 12-year-old boy who acts out due to neglect from his parents. He frequently skips school and gets into trouble.
2) Antoine's mother yells at him often and his stepfather is harsh, bringing Antoine to a police station after he steals a typewriter.
3) After Antoine is caught skipping school again, his father slaps him. Antoine runs away from home and is eventually sent to a correctional facility, where he plans his escape.