Murders go unsolved. Killers slip through the cracks. With the passage of time, families lose hope and another unsolved homicide file settles into obscurity. The pattern is familiar, but changing -- thanks to the efforts of a special breed of detectives. Cold Case Files tells the story of their work.

These detectives are experts in the science of crime detection. They blow the dust off old homicide files, walk down the corridors of time and set out on the hunt for a killer . . . a killer who thinks the search is off. Using new technology and old-fashioned police work, their methods offer a study in patience and perseverance. Cold Case Files takes you on a journey, step-by-step, through the methods used to catch the culprit. The series examines each piece of forensic evidence, each witness, each building block and turn-in-the-road that ultimately leads detectives to their killer.

Cold Case Files is a pioneer in the non-fiction forensics genre. Episodes have been universally hailed by law enforcement agencies across the country and are regularly used as models for investigative technique in training seminars.