Goren and Eames enter the closed world of a thieving Irish Traveller clan when they investigate the death of a Ann Lawson, a probation officer who was run over three times after meeting a friend at the bar. They soon learn that Ann, a probation officer, had been involved with Malcolm Bryce, the father of Paul, one of her charges. It appears as though Ann is also very close with the thieving Irish Travellers they are investigating, determined to save a young girl from their style of life.