TV's top fugitive hunter investigates the UK's worst unsolved murders.

Roughly ten per cent of all murders in the UK go unsolved. Here, Britain's top ex-undercover cop shines new light on cases up and down the country in search of answers.

Peter Bleksley's life has been devoted to investigating. As an undercover detective for the Metropolitan Police and in his ability to get to the bottom of a case was legendary as he dealt with some of the world's most feared criminals. His success rate in solving murders as a serving officer was one hundred per cent.

Using the investigative skills gained from decades of experience and access to archives and contacts in the force, Bleksley shines new light on investigations that ran aground, often despite extensive media coverage and police resources. Often he discovers glaring errors made by investigators and forensic teams that will shock many of the general public.

Now a renowned policing and crime expert seen on the BBC and as the Chief on Channel 4's Hunted, Bleksley's knowledge and experience is peerless. On the Run is a comprehensive and fascinating investigation into murders of the most callous kind, finding the human story behind the headlines as he hunts down the killers on the run from justice.