← Manhunt: The Railway KillersSeason 13 episodes · 2021No image1Episode 116 Aug 2021On a wintry night in December 1985, Alison Day goes missing after getting off a train.No image2Episode 217 Aug 2021The murderers of Maartje Tamboezer and Alison Day are hunted desperately by police.No image3Episode 3finale18 Aug 2021In 1997, nine years after John Duffy has been sentenced to life for murder and rape.