The story you are about to hear is true only the names have been changed to protect the innocent. Dragnet is the documented drama of an actually crime written in cooperation with the Los Angeles Police. You will travel step by step with the law through an actual case transcribed from official police files. From beginning to end, from crime to punishment Dragnet is the story of your police force in action.

Detective Sergeant Joe Friday is assigned to Homicide Detail. A young girl has been shot with a 22-calibre rifle. It was reported as suicide. It's Detective Sergeant Joe Friday’s job to investigate.