On Valentine's night, 2015, 27-year-old James Enright is stabbed to death outside a busy train station in Burnaby, Canada. Despite cell phone footage of the attack, police struggle to identify his killer, until CCTV leads them to an unlikely suspect.

On October 1st, 2009, 37-year-old Natasha Cournoyer disappears without a trace in Laval, Canada. As her friends and family struggle for answers, Detectives must follow a stone-cold trail to uncover her final footsteps caught on surveillance cameras.

On April 28th, 2010, 12-year-old Alajawan Brown is gunned down outside a 7-Eleven in Skyway, Washington - a block from an earlier shooting. As police question if the two are related, only CCTV can help piece together the puzzle and ID his killer.

On March 27, 2017, Andrew Nesbitt is found dead on his 46th birthday in his Madison, Wisconsin apartment. With no witnesses, investigators turn to surveillance cameras in local bars, cabs, and street corners to track down his killer.

In February 2015, the body of 26-year-old Celina Petersen is found dumped in an alley in South Park, Seattle. When police recover surveillance footage from across the neighborhood, they begin to unravel the shocking truth behind her murder.

On August 25, 2015, 51-year-old care worker Torrance Cheeves is found stabbed to death in his San Antonio, Texas home. With no suspects and a trail of puzzling evidence, investigators turn to surveillance cameras in the surrounding area for answers.

June 30, 2008. Tom and Jill Estes' bodies are found behind a dumpster in Festus, Missouri. Police are baffled, until a receipt leads to CCTV of a blood-stained suspect. A trail of bodies reveals a killer who must be stopped - before he strikes again.

On April 23, 2016, car salesman Hufracio Arteaga is found stabbed to death in his Michigan City office. With no witnesses, will surveillance cameras from an adjacent building reveal the secret to what happened before the killer strikes again?

Thirty-six-year-old Carl Starke is shot dead in cold blood near his home in St. Augustine, Fla.; while there are no witnesses, neighbors hear shots; armed with a likely time of death, police turn to CCTV to help hunt down Starke's killer.

On September 7th, 2009, 27-year-old Jessika Kalaher is found strangled in her car in Cedar Park, Texas. With her wallet and car keys missing, detectives turn to security cameras in the hope of answering the questions: who killed Jessika, and why?

In February 2008, Christopher Duncan left his apartment in San Antonio Texas, never to return again. Police have little to go on until surveillance footage has the potential to reveal the identity of a dangerous killer.

On November 12, 2012, Atlanta entrepreneur Terry Porter is found shot dead, execution style in the front yard of his home. There is no forensic evidence and no witnesses to the murder. Can detectives use surveillance footage to catch his killer?

In 2009, 25-year-old student Julissa Brisman is found shot and bound in an upmarket hotel room in Boston. With no witnesses to the crime, investigators turn to surveillance cameras in the surrounding area and quickly unravel a serial attacker.

On November 7, 2014, 69-year-old Ina Clare Richardson is found brutally murdered in a public park in Clarkston, Washington. With no witnesses to the crime, investigators turn to surveillance cameras to piece together the puzzle of her final night.

On November 23, 2012, Pennsylvania DJ Ervin Holton is found shot dead on his friend's porch. With no witnesses, investigators spot cameras outside a nearby store. Pointing directly at the crime scene, could this camera have captured Ervin's killer?

On March 29, 2016, music loving Louise Dickey is discovered brutally murdered in a bath of her own blood. With no imaginable motive for the homicide and no witnesses, detectives seek out surveillance cameras to uncover the shocking truth.