CCTV footage reveals the murderers of a man found inside a burnt-out home.

When 71-year-old Cindy Mudd goes missing, the Kanawha County Sheriff's Office turns to CCTV to retrace her movements. They follow a trail of surveillance footage to zero in on their suspects and reveal the shocking truth of what happened to Cindy.

In the aftermath of the brutal slaying of a homeless man, James Tony Wise, Portland PD, turns to the footage from surveillance cameras to find his killer. Detectives use the images to retrace the rampage through the city of a violent offender.

In Baltimore, a killer strangles two women to death less than a week apart. Investigators piece together the clues from CCTV footage from the locations of the two homicides to reveal a suspect with designs on becoming a serial killer.

When 60-year-old Ilene Gowan goes missing, Council Bluffs PD turn to CCTV to retrace her movements. They follow a trail of surveillance footage to unpick the lies of someone close to Ilene, and reveal the shocking truth of what happened to her.

When a gunman shoots Reggie Ward at a gas station in Cedar Rapids, Iowa, witnesses and the victim's girlfriend, are unable to identify the shooter. Investigators follow a trail of surveillance footage and GPS data to find an unexpected suspect.

When 37-year-old Merrilee Cox-Lafferty disappears in Utah, investigators turn to CCTV to track her down. Then her car turns up 300 miles away in Idaho, new persons of interest enter the frame, and Merrilee's disappearance is something more sinister.

When Rodney Thurber is shot dead in his own home, investigators follow a trail of surveillance footage to catch the military veteran's killers.

After the murder of Johnny Soekhies in Alabama, authorities turn to CCTV to hunt his killer. Surveillance footage reveals a vehicle driving Johnny to the place of his eventual murder and captures a glimpse of a sinister figure lurking in the shadows.

 20-year-old Gabriel Perez is gunned down at a fast food restaurant in Fargo. A trail of surveillance footage unmasks a jealous gunman.