
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 twelve-year-old girl claims that she was abducted and sexually assaulted; her story seems unbelievable until police discover fibers on her clothing.

A wax bullet, white blanket and olive colored carpeting tell a lot about the murder of a young woman found in a ravine.

A decade old case reopens, and a few seconds of a 911 call enable investigators to determine who is responsible for a murder.

When a man dies after falling down the stairs, a witness says one thing and the evidence says another.