Renowned undercover reporter and crime journalist Donal Macintyre examines the most horrific and fascinating crimes. Interviewing the men and women who ensured first-hand justice was done, he’ll get to the heart of what it took to forensically crack the case. The series explores the personal side of crime solving like none other – by uncovering the intricacies of how the case was cracked with the people who put their lives on the line to ensure justice was done.