After Cristina goes missing, detectives look for CCTV that may reveal her movements. When her cell pings at a location in Arkansas, detectives gather surveillance from the area in the hopes that it will hold answers to Cristina's disappearance.

When police find 27-year-old Corey Lee Hughes dying on the floor from a gunshot wound to his head on June 21, 2019, they turn to canvassing for security video to find his attacker. A neighbor's camera captured a suspicious SUV leaving the scene and Evansville, IN investigators follow the clues to track down its driver.

Doug Coker, husband and respected businessman, vanishes after a meeting in Henry County, GA, in 2012. Meanwhile in Oxnard, CA, 23-year-old single mom Lorena Gonzales doesn’t come back from applying for a job.

On a summer afternoon, police arrive at the scene of a traffic accident in West Chester, PA. Bianca Roberson, 18, sits dead at the wheel of her car. An autopsy reveals a sinister crime, but hopefully, CCTV footage will find Bianca's killer.

Detectives turn to CCTV footage following the shooting of 65-year-old veteran and grandfather Billy Connole while he was taking a nighttime walk in Loveland, CO in 2015. The surveillance images reveal that the driver of an old pickup truck could hold the key to identifying the man's killer.

A newly engaged couple is found brutally murdered in their car parked in a deserted parking lot in Irvine, CA. To investigators it looks like an execution. There are no leads until a surveillance camera 90 miles away gives the investigation its first break - a killer bent on revenge.

In Pembroke Pines, FL, single mom Natalie Belmonte vanishes after a family party. Detectives have no leads until a neighbor's CCTV reveals a shocking tale of murder and betrayal. Across the state In Pensacola, police investigate the strange disappearance of popular news reporter Sean Dugas, and find themselves drawn into an addictive world of gaming.

On March 29, 2016, 63-year-old Louise Dickey is discovered by her daughter in a bath of her own blood; she had been stabbed 98 times and her car was missing. Independence, MO detectives look for surveillance footage to catch the brutal killer after her car was found in a store parking lot.

The brutal murder of an elderly landlady offers no forensic answers. Detectives piece together her final days using security footage and hope to discover a vicious killer's motive before they strike again.

In 2017, 33-year-old Michael Scott is shot dead on the streets of downtown Baltimore. Detectives are in a race against time to find the gunman before he strikes again. Can a trail of cameras lining the city’s streets and buses lead police to the killer? [also shown as S9:E2]

In Cleveland, TX, a masked man guns down 40-year-old store clerk Conbino 'Bino' Crasto during a gas station robbery in 2016. Surveillance video sends police on a hunt for three masked suspects, and a nearby camera captures the getaway vehicle leading to the mastermind behind this brutal crime.

When Marcel Reardon is discovered bludgeoned to death outside a building, his friends deny all knowledge of his murder. But detectives are convinced at least one of them is lying. As the net closes, the prime suspect prepares to strike again.

In Alexandria, VA, Nancy Dunning, Ronald Kirby, and Ruthanne Lodato are all fatally shot in broad daylight by a gunman knocking at the front door. Can detectives use security footage to track down a demented killer before they strike again?

In 2016, in Kamloops, Canada, a motel cleaner finds the body of an unidentified woman in one of the rooms; detectives turn to surveillance cameras to track a mysterious suspect in a cowboy hat, leading to a desperate manhunt across Canada.

In Pensacola, FL, Byrd and Melanie Billings, loving parents of 9 adopted children with special needs (in addition to their older biological adult children), are brutally gunned down in their own home. Police must rely on surveillance cameras to catch the suspected killers and bring them to justice.

Devoted family man Dr. David Cornbleet is brutally killed in his office. His daughter finds him, bound and gagged, in a pool of blood. Police must rely on CCTV images of man with a concealed face to lead them to David's killer in this twisted tale.

When 27-year-old Christie Wilson disappears after a night at the local casino, surveillance cameras reveal her gambling with a mysterious man. Police hope this video footage will unlock the secrets of what happened next and help bring her home alive.

When loving couple Gary and Linda Haas fail to reach their vacation campsite, New Mexico State Police are called in to investigate. With no forensic evidence and no witnesses, all they can do is scour CCTV footage for clues to unravel the mystery.

Michelle Mockbee goes to work early to get a jumpstart on payroll. Less than an hour later, she's murdered outside her office. Following the surveillance footage leads detectives to a closet full of dirty secrets that may have been worth killing over.

When a killer executes 19-year-old Abigail Gasca-Chavez in her own home, the only witnesses are her toddler and neighborhood surveillance cameras; detectives close in on a suspect, but when he heads for the Mexican border, it's a race against time.

In 2017, police find 51-year-old Jorge Rodriguez wandering the streets with gunshot wounds near a crashed car riddled with bullet holes; to get justice for Jorge's heartbroken daughters, they follow a trail of CCTV left by the mysterious suspect. [also shown as S9:E5]

In 2018, three women held hostage in a motel room by armed men face a night of terror that leaves 19-year-old Amber Meadows lying dead in the bathroom; detectives must follow a trail of surveillance footage to find out who pulled the trigger.

In Pierce County, WA, a woman’s body is set alight beside a dead-end road. Detectives struggle to identify their victim until cameras lead to a shocking discovery at the woman’s home and put them on the trail of a cold-blooded killer.

In Tulsa, OK, roommates Amanda Douglas and Jennifer Sudar Sanders enjoy an evening out at a local casino. The next morning, the two are shot in broad daylight outside their apartment complex. Police soon learn from witnesses that the shooter was driving a distinctive gold Pontiac and surveillance footage confirms their reports. Investigators dig deeper and a possible motive begins to emerge. Can surveillance footage connect the dots and reveal the identity of their killer?

Single mom Laura Ackerson leaves for work one morning and never returns. With no leads, police turn to surveillance cameras to locate her. But the more footage they uncover the more sinister the case becomes. Can they find Laura before it's too late?