
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 high school gym teacher gives his friend a ride home but never returns; his wife and friend receive letters saying he started a new life, but they suspect foul play despite no body being discovered.
A 16-year-old girl is killed in her own home by her mother and father. Her parents said they acted in self-defense, but the forensic evidence indicates otherwise.
Investigators determine if a computer crash which almost ruined a manufacturing company was accidental or deliberate sabotage.
Car with three Secret Service agents collides with local deputy's car; investigation launched into who was responsible for the deadly car accident finds two very different conclusions.