Adapted from James Vance Marshall's novel The Children, Walkabout begins with a father-of-two driving his fourteen-year-old daughter and six-year-old son into the desert. Overwhelmed by the pressure on his life, he plans to kill them and then commit suicide, but his plan goes wrong. The siblings wander the desert aimlessly until they meet a young Aboriginal boy who is on a solitary walkabout as part of his tribal initiation into manhood. The three become travelling companions. Gradually, sexual tension develops between the girl and the Aboriginal boy. When they approach white civilisation, the Aboriginal boy dances a night-long courtship dance, but the girl is ignorant of its meaning. When she and her brother awake in the morning, they find the boy dead, hanging from a tree. The brother and sister make their way to the nearby mining town, where they receive a cool welcome from the townsfolk.
