
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.

Detectives find suspicious similarities when a husband and wife report their second daughter missing a few years after the disappearance of their first.

Insect evidence helps to solve the mystery of a woman found dead near a river bank.

A woman is killed two days before she was scheduled to testify against a man accused of assaulting her and the prime suspect has an alibi.

Forensic scientists provide authorities with evidence that a death deemed accidental 20 years ago was actually murder.