In 2009 in Tracy, CA, a little girl vanishes after playing at a friend's house, leaving her family desperate for answers; with no leads and few clues, investigators must rely on surveillance footage to piece together the horrifying truth.

In Texas, on Christmas Eve 2010, a woman gets a mysterious phone call at work and speeds home to find her 12-year-old son gone without a trace; investigators look at those closest to the boy, but only surveillance footage can lead them to the truth.

Every parent's worst nightmare comes true when 16-year-old Skylar Neese disappears without a trace from her Star City, WV home. But a few seconds of surveillance footage leads cops to the most shocking discovery imaginable.

In Philadelphia, Carlesha Freeland-Gaither is abducted after getting off a bus upon returning home from a friend's party around 10 pm. The police respond to a 911 call from a concerned citizen who heard her screams and pursue the investigation using local CCTV footage. When police check the footage, they discover that she was violently abducted right on camera and now they have to find the mystery perpetrator before it's too late.

On June 30, 2008, the bodies of Tom and Jill Estes are found behind a dumpster in Festus, MO. 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.

Detectives rely on surveillance footage at a hospital in Tyler, Texas, when patients mysteriously start dying in the intensive care unit.

In September 2014, an Iowa college town panics after police find Tong Shao, a missing student from China, murdered; when security camera footage points to a planned execution, hunting down the young woman's killer becomes an international mystery.

College student Kenia Monge disappears without a trace in Denver, CO. The family’s search for their 19-year-old daughter hits every dead end -- until detectives uncover chilling surveillance footage revealing exactly what happened to her.

Mother of two Nikki Whitehead is brutally murdered within her own home. Police suspect she may have known her killer. Polygraphs and CCTV footage help reveal the unexpected and horrific truth.

A family's nightmare begins in September 2014 when 8-year-old Hiawayi Robinson leaves her apartment to play but never returns. The desperate search to find her leads investigators to surveillance footage that sends shockwaves through the community.

18-year-old Kelsey Smith disappears from an Overland Park, KS mall in 2007. The only clue for detectives is the haunting final images of her on surveillance video. Somewhere in these frames hides the answer -- and a killer.

In 2012, 21-year-old Mickey Shunick is missing after a night out in Lafayette, LA. Her family is terrified and mobilizes the local community to help search for her. Police are unable to find any trace of the Louisiana student -- until they spot her on surveillance video.

19-year-old college student Katie Poirier vanishes while working the graveyard shift at a gas station. It’s a family’s worst nightmare come true. Grainy security footage reveals an answer but leaves a community in fear.

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

On October 1, 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.

In April 2012, in Farmville, NC, three family members working at a convenience store fall victim to the most cold-blooded crime the town has ever seen. Detectives aim to pick up the killers' video trail and put an end to their bloody spree.

On March 18, 2011, 32-year-old Patty Ayala is murdered at the Burger King where she works. Police find the safe open and a mysterious message next to Patty's body. They turn to surveillance video—and it's there the killer emerges from the shadows.

In 2016, Jordie Hudson vanishes after a night out with friends. The only clue police have is her glasses, which are discovered in a pool of blood. Surveillance footage shows a horrific attack. Can police find her abductor before it's too late?

On February 14, 2014, pregnant college student Loretta Saunders vanishes without a trace. Her trail runs cold after she is spotted on CCTV at her apartment building. The race is now on to find her before it's too late.

On December 26, 2011, Hope Melton vanishes after being run off a country road. CCTV footage from a nearby gas station reveals a suspicious orange car that seems to have followed her out of the parking lot. Police hope they can find Hope before it's too late.

In the early hours of September 28, 2011, student Maple Batalia is found shot dead in the parking lot of Simon Fraser University. With over a hundred cameras at their disposal, detectives dig through the footage and race to figure out who killed Maple.

On April 23, 2016, car salesman Hufracio Arteaga is found stabbed to death in his Michigan City, IN, office. With no witnesses, investigators use surveillance cameras from an adjacent building to find out who murdered Arteaga.

When she interrupts a burglary at home, Diane Pranske is abducted and left for dead across state lines. Detectives turn to surveillance video to find her assailant, but can investigators get justice for this brutal crime before she takes her final breath?

In Danville, KY, a pawn store robbery leaves three people dead. Detectives battle to identify the suspect and their only lead is a mysterious silver van. Using a trail of video to pursue the elusive vehicle is their only hope of catching a killer.

24-year-old former cheerleader Amy Lord is reported missing by her co-workers in South Boston. Police first find her burned car and then, her body. Incredible footage from five ATMs and outside her apartment building capture the exact moment she was taken by her killer.