
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.
Police launch a search for a killer after a teenager returns home to find his father's body in a pool of blood.
A Naval officer who threatened to go public with tales of on-the-job sexual harassment and assault is brutally murdered, but when investigators find the allegations could be part of an elaborate scheme for money, they turn to forensic science.
A man is found stabbed to death after a night in a strip club; a drop of blood on a bedspread becomes critical evidence five years later.
After police identify a murder victim thanks to her butterfly necklace, they discover several co-workers had vendettas against the victim.