A middle-aged alcoholic is sentenced to six weeks in jail for a minor offense. While there he undergoes psychiatric treatment for his alcoholism and is committed to a hospital for the criminally insane for the duration of his sentence. However, under Section 27A of the Queensland Mental Health Act, he can be detained indefinitely until the hospital authorities declare him eligible for release.
Under the pretense of having a picnic, a geologist takes his teenage daughter and 6-year-old son into the Australian outback and attempts to shoot them. When he fails, he turns the gun on himself, and the two city-bred children must contend with harsh wilderness alone. They are saved by a chance encounter with an Aborigine boy who shows them how to survive, and in the process underscores the disharmony between nature and modern life.
