
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.
When a single mother is murdered, her brother vows to find the person responsible for the death of his sister, even if it takes more than 30 years.
A husband and wife get shot, and their 16-year-old daughter manages to escape, but investigators suspect she may be involved in the murder.
After 10 years, a witness decides to do the right thing about the rape and murder of a young hairdresser.
Police investigate the possibility of a hate crime when two women go missing and are later found murdered.