Bittersweet story about London's unwanted children and the good people trying to help them. Ann is a social worker, while Bill is an electrician whose contract with the local care home introduces him to the children and Ann. Events start to escalate out of control when a child takes possession of a loaded gun.

An Australian "swagman" finds his wife with another man, so he takes the daughter, Buster, with him. On the road together, going from town to town and from farm to farm, father and daughter explore new depths of understanding and bonding.