
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.

A forensic scientist uses his skills to preserve a footprint left in snow to help authorities nab two men suspected of robbing an Ontario couple and shooting the husband in the head.

Investigators see through a killer trying to cover his tracks by staging the crime scene to learn what really happened.

When a man dies unexpectedly in the office of a noted California doctor, police begin what they think will be a routine investigation, but discoveries of false identities and insurance fraud raise questions about the doctor's role.

A young girl beaten after watching her grandmother killed, identifies the wrong person; years later she tries to change her statement.