
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.

After a Vancouver custodian finds a burned body in a dumpster, investigators determine the corpse's identity and attacker.

Police find fragments of deleted computer files leading them to suspect a woman's suicide is really murder.

A well-liked bank vice president collapses and dies after taking pain pills laced with cyanide; the search for a motive reveals a callous suspect who had murdered once before.

An abandoned, still-running car leads investigators to a body with unusual marks and a DNA trail that lead to the killer.