
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.

An anonymous caller reports the rape and murder of a dry cleaner employee; two eyewitnesses tell two similar but not identical stories.

A woman who survived a deadly childhood fire sends police a letter charging that her father killed her mother 30 years ago.

Police blame a botched robbery when an eccentric elderly millionaire is found dead, but the motive could be wrong.

A beverage company pleads guilty to violating federal safety laws when a baby dies from E. coli after drinking apple juice.