15-year-old Elizabeth Ennen was last seen when a friend dropped her home, but police find a piece of CCTV that turns the case in an unexpected direction. S2/Ep10
In 2017, an exchange student mysteriously vanishes from her university campus. Can security camera footage help detectives hunt down the person responsible? S6/Ep7
Andrew Nesbitt is found dead on his 46th birthday in his Wisconsin apartment after a night out. Officers turn to CCTV in local bars, cabs, and street corners. S5/Ep13
When the body of Celina Petersen is found dumped in an alley in Seattle, surveillance footage from across the neighbourhood reveals the shocking truth. S5/Ep12
In 2015 care worker Torrance Cheeves is found stabbed to death in his Texas home. With no suspects and a trail of puzzling evidence, will CCTV offer clues? S5/Ep11
A 24-year-old Yale student goes missing several days before her wedding. Can security camera footage help detectives hunt down the person responsible? S6/Ep4
When Tom and Jill Estes' bodies are found behind a dumpster in Missouri, police are baffled - until a receipt leads to CCTV of a blood-stained suspect. S5/Ep10
In 2016 car salesman Hufracio Arteaga is found stabbed to death in his Michigan City office. Will surveillance cameras from a nearby building reveal the killer? S5/Ep9
In 2009, 27-year-old Jessika Kalaher is found strangled in her car in Texas. With her wallet and car keys missing, detectives turn to security cameras for clues. S5/Ep8
After Christopher Duncan disappears after leaving his apartment in Texas, police make a grim discovery. Surveillance footage points to a dangerous killer. S5/Ep7
When Carl Starke is shot dead close to his home in Florida, police turn to CCTV to help hunt his killer, resulting in a huge manhunt and shocking on-camera interview. S5/Ep6
When 69-year-old Ina Clare Richardson is found brutally murdered in a park, police turn to security cameras to piece together the puzzle of her death. S5/Ep5
When Louise Dickey is discovered brutally murdered in a bath of her own blood, police are stumped. But, nearby surveillance cameras may lead to the shocking truth. S5/Ep4
In 2013, a 25-year-old man was shot in a nightclub in Wisconsin. Detectives hope that a camera could reveal the identity of the cold-blooded killer. S6/Ep3
In 2012, young entrepreneur Terry Porter is found dead by his neighbour. There is no forensic evidence or witnesses, but surveillance footage may have the answer. S5/Ep3
When student Julissa Brisman is found shot and bound in a hotel room in Boston, police use cameras to find her killer and are shocked by what they uncover. S5/Ep2
In 2012, local DJ Ervin Holton is shot dead on his friend's porch. With no witnesses, police turn to the security cameras opposite - did they catch the killer? S5/Ep1
Maple Batalia is found dead in the parking lot of Simon Fraser University. With over a hundred cameras at their disposal, can detectives figure out who killed her? S4/Ep16
When the body of Fernando Silva is found, the crime scene reveals little about what caused his death. Will the cameras help police find out what really happened? S4/Ep15
When Rhonda Daugherty vanishes, detectives turn to the public for information. A tip leads to surveillance footage from a hotel that uncovers a journey of deceit. S4/Ep14
When Hope Melton vanishes after being run off a road, CCTV footage from a nearby gas station reveals a suspicious car. Can police find Hope before it's too late? S4/Ep13
A loving wife and mother is found brutally murdered at home in Edmond, Oklahoma. Can security camera footage help detectives hunt down her killer? S6/Ep2
Emily Lambert goes missing after spending the night at a hotel bar. Two days later, she is found murdered. Can investigators track down her killer on CCTV? S4/Ep12
Family man Richard Arenas is gunned down in broad daylight. With no apparent motive or witnesses, can investigators track down his killer on CCTV? S4/Ep11
When Diane Cunningham is found murdered, the only clues are several receipts. Security footage reveals a prime suspect, but not everything is quite as it seems. S4/Ep10
Pregnant student Loretta Saunders vanishes. Her trail runs cold after she is spotted on CCTV at her apartment building. The race to find her is now on. S4/Ep9
When Dalene Carlson vanishes in the night, CCTV footage reveals several suspects, each with a motive. Can police uncover the truth behind her disappearance? S4/Ep8
When Maurice Byrd is found shot dead in his home, security footage reveals he had many visitors before his body was discovered. But which one is the killer? S4/Ep7
Days after Beth von Steinner goes missing, her frozen body is found behind her house. With no witnesses or suspects, only CCTV footage can reveal the truth. S4/Ep6
A police officer is shot dead at point blank range at the Harris County Courthouse outside Houston, Texas. With no witnesses, can security cameras lead to his killer? S6/Ep1
In 2015, Edward Lowry was found savagely beaten to death in South Dakota. With little evidence left behind, can police piece together Ed's last moments from CCTV? S4/Ep5
Michelle Thornton's disappearance on New Year's Eve sparks a gruesome investigation. With no witnesses, can detective uncover the terrifying truth? S4/Ep4
Fifty-seven-year-old Cynthia Langrall is a devoted wife and hardworking paralegal. So when she's shot dead, police are baffled as to who would commit the crime. S4/Ep3
When Susan Casey disappears, CCTV footage reveals three likely suspects on the scene. It's impossible to tell who's responsible until a video shows someone is lying. S4/Ep2
When Jordie Hudson vanishes, police find her glasses in a pool of blood and horrific surveillance footage. Can her abductor be captured before it's too late? S4/Ep1
On a late-night trip for food, Tosha Lampkin disappears. When her burnt out vehicle and remains are discovered CCTV provides detectives with their only lead. S3/Ep13
17-year old Casey Crowder vanished early one morning when her car ran out of fuel. With no leads investigators are desperate for any CCTV clues. S3/Ep11
24-year old Nathan Trapuzzano is shot dead during his morning walk, leaving his pregnant wife a widow. Can CCTV footage help police track down the killer? S3/Ep10
When Christie Wilson disappears after a night out, CCTV cameras reveal her gambling with a mysterious man. Can this footage unlock the secrets of what happened? S3/Ep9
Family man Dr David Cornbleet is brutally murdered in his office. Police must rely on CCTV images of man with a concealed face to lead them to the killer. S3/Ep8
In 2014, Kimberly Robertson's battered body is found on a sidewalk after a date with her boyfriend. Can CCTV footage help detectives identify her killer? S3/Ep7
In 2009, Philip Gatusso is murdered in the quiet town of Fargo. When police can't find any leads, they turn to a witness that never sleeps - surveillance video. S3/Ep6
When a teenager goes missing, detectives struggle for leads. But when surveillance cameras reveal her kidnapping, the case becomes a race to bring her home alive. S3/Ep3
A young woman is found dead in a Texas landfill. Detectives turn to their only witnesses: video cameras that captured the murderer's attempt to cover his tracks. S3/Ep2
A 22-year-old nursing assistant vanishes. When police check the local CCTV footage, they discover that Carlesha Freeland-Gaither was abducted right on camera. S3/Ep1
Keith Reed is found gunned down on his doorstep. A possible crime of passion is in doubt after a surprise discovery. Will CCTV footage unravel the mystery? S2/Ep12
In Tempe, Arizona, millionaire entrepreneur Rick Chance is brutally gunned down in a hotel room. To catch the killer, detectives turn to surveillance video. S2/Ep11
15-year-old Elizabeth Ennen was last seen when a friend dropped her home, but police find a piece of CCTV that turns the case in an unexpected direction. S2/Ep10
Mum-of-two Nikki Whitehead is brutally murdered in her own home. Police suspect she may have known her killer. Polygraphs and CCTV footage help reveal the horrific truth. S2/Ep9
19-year-old student Katie Poirier vanishes while working the graveyard shift at a gas station. CCTV footage reveals an answer - but leaves a community in fear. S2/Ep8