Trial & Retribution

A five-year-old girl goes missing and the police are called to search for her. When her body is found, it becomes a murder investigation, headed by DS Michael Walker.

DS Walker pursues Damon Morton, accused of brutally attacking women, but the case is complicated by false confessions and alibis.

15-year-old Cassie Black goes missing on her paper round in south London. An anonymous phone call leads the police to a boathouse in Putney where they discover her blood-stained jacket and trainers. An inquiry is launched.

DI Pat North is assigned to look into a 15-year-old case that may clear a man convicted of murder eight years ago.

Walker investigates the discovery of a 17-year-old skeleton underneath the patio of a former bed and breakfast. His situation is worsened as he's partnered with North's ex-boyfriend.

Back on the murder squad, North is asked to investigate when a young mother of two is abducted. The confession of a local sex offender complicates matters, as Pat looks into the possibility that the father of a young protégé of the woman may be responsible for her disappearance.