
Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.
Tests reveal the race, eye color and hair color of the person responsible for killing two young women on Halloween night.
A convicted arsonist claims his innocence and with no lawyer, no money and only a fifth-grade education, sets out to prove it.
A canine behaviorist uses the family dogs, who are the only witnesses, to find the murderer of their owner.
Investigators see through a killer trying to cover his tracks by staging the crime scene to learn what really happened.