Donal MacIntyre interviews former Detective Chief Inspector Sue Hill, to discover how she brought justice to the family of murdered Jeshma Raithatha.

Donal MacIntyre interviews former Detective Chief Inspector Clive Driscoll to discover how his determination led to the capture of Stephen Lawrence's murderers over fifteen years earlier.

Donal MacIntyre interviews former Detective Inspector Bob Taylor to discover how he worked to prevent another woman being kidnapped and a murderer striking again.

Donal MacIntyre interviews Detective Superintendent Kate Meynell to discover just how close Nigel Bacon, a man with many enemies, was to his killer.

Donal MacIntyre interviews former Senior Investigating Officer Simon Shuttleworth to discover how he ensured that the murderer of Shaun Cummins would be found guilty.

Donal MacIntyre interviews Detective Chief Inspector Martin Brunning to discover how the capture of killer Joanna Dennehy led to the discovery of a string of victims.

Donal MacIntyre interviews former Detective Chief Inspector Clive Driscoll to discover how he investigated the suspected murder of Surjit Athwal, without a body or witness.

Donal MacIntyre interviews Detective Chief Superintendent Kate Meynell to discover how she and her team solved the murder of the Taufiq family.

Donal MacIntyre interviews Detective Chief Inspector Martin Brunning to uncover the murder of Vitalija Baliutaviciene.

Donal MacIntyre interviews former Detective Chief Inspector Howard Groves to discover how his dedication helped find the murderer known as the 'Canal Killer'.