
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 2-year-old boy's brain seizures and breathing problems baffle doctors until they learn the mother exhibits signs of Munchausen syndrome by proxy, a rare condition that led her to physically abuse her son and contributed to her daughter's death.
A woman has an accidental fall down a flight of stairs and appears to have hit her head, but the lack of blood splatter and misplaced shoes lead police to believe the fall was staged.
Two years after an 18-year-old's murder in Albion, Mich., a tiny drop of blood and burned bones lead police to her killers.
Evidence that includes threatening emails, a missing person and an abandoned truck lead police to a woman's suspected killer, but they don't have the victim's body.