A pedestrian check turns deadly when a cop is gunned down on an icy midnight patrol. The stakes are higher than ever as detectives hunt down the person responsible

After a night at karaoke, a pretty nurse vanishes into the frigid Wisconsin winter. Security footage reveals the woman left with a mystery man in a dark jacket.

When a beautiful home healthcare worker disappears during an icy New York night, loved ones lead the search for her safe return. But a series of incoming text messages and a mysterious missed call reveal a soul-crushing truth and a murder most evil.

During an icy Wisconsin winter, a single mum vanishes. Police learn she was recently stalked by two men at a bar, but the danger doesn’t stop there. A brutal assault, an anonymous email and a bizarre confession shed light on a deadly encounter.

When a single mother of three misses a routine bank run with her sister, panic begins to spread among the family. The family’s nightmare becomes a reality when a passerby finds the beloved petite woman brutally assaulted, nude and frozen in an alley.

A kindhearted woman is found slain in her bed from what seems to be a burglary gone wrong. A bloody handprint, axe, and evidence from multiple break-ins are key elements investigators use to solve this chilling, gruesome murder.

On a wintery December evening, a 29-year-old supermum doesn’t return home after her meeting. Is she going to miss her daughter’s first Christmas? Her family is devastated when the devoted mother is found frozen solid and dumped in the snow.

A married father of three wakes up to every parent’s worst nightmare – his youngest child dead, his daughter missing, and his son barely clinging to life. Will investigators be able to find the cold-hearted monster that brutally attacked this family?

On a snowy Wisconsin morning, an 18-year-old mother is found beaten, stabbed and strangled to death with her 3-month-old son as her only witness. Leads grow cold and the chase for a suspect leads detectives to a vicious killer who's close to home.

On a chilly winter morning in St Louis, an 11-year-old girl vanishes. Days later her body is found along an icy river bank. She's been brutally murdered. It's a race against time for investigators who fear the elusive killer will strike again.

A brutal murder and frozen crime scene shatter an idyllic Idaho town. A suspect's bizarre confession has police hoping for a quick resolution, but all is not what it seems and they need to find an attacker with a gruesome MO before he strikes again.

Police discover a murdered young woman and empty child car seat in the back of a burning car and a frantic search ensues in hopes of finding the child unharmed. They also have to do their best to find who killed the young woman.

The disappearance of a 30-year-old woman during a frigid winter hovers in St. Paul, Minn., leads to a three-month investigation that culminates with a heartbreaking revelation.

On a frigid fall evening, a hunter in Missouri is found shot to death. Freak hunting accident or cold and calculating homicide? As the mysterious case unfolds, police uncover a web of infidelity and lies, leading to the least likely of suspects.

On an icy January morning in Connecticut, a murdered woman is found dumped in the snow. Police fear she is the victim of a serial predator. When the case goes cold, an intrepid reporter makes a daring move to help stop a killer in his tracks.

An entire family vanishes in the dead of winter from Nebraska. Have they suddenly decided to skip town, or has something far worse happened? A daughter's relentless search helps cops uncover a sinister and deadly plot fueled by revenge and greed.

More people vanish in Alaska than any other state. The disappearance and murder of Sherry Morrow leads to an investigation which brings them to dozens of grave sites throughout the Alaskan wilderness.

Louis Hastings is determined to stop the Alaskan Pipeline by blowing it up, but first aims to eliminate all possible witnesses and, in the small town of McCarthy, stalks his intended victims.

A couple on holiday fail to return and when suspect Paul Stavenjord goes on the run, troopers embark on an an intense manhunt in the dense Alaskan brush.

A heavily armed newcomer rides into a remote town and proceeds to commit a bloody assault that leaves one tenth of the town dead. What made the stranger commit this act?

Investigators rush to catch up with a suspected serial killer after bodies of young women are found in the tiny town of North Pole. The town is best known as the place to see Santa and his sleigh.

A young man carries out a vicious and bloody attack and then takes a gun and strikes at the community. Police try to keep up and discover where he will strike next.

The abduction and murder of an 11-year-old girl in an isolated Alaskan village leaves locals fearing they're being preyed on by an evil outsider, until investigators reveal something far more sinister and closer to home.

Baffled by the animal instincts of a cross-country killer whose crimes seem to go dormant in winter, authorities ultimately follow his tracks to a den of deceit in the frozen tundra of Alaska.

A Colorado woman is run off the road and brutalized for hours by a serial killer. She narrowly escapes his clutches by flagging down a passing motorist - only to realize the felon is in hot pursuit, eager to reclaim his lost prize.

Joe Vogler, a well-known Alaskan gold miner and outspoken political activist, vanishes without a trace from his remote mountain top home in Fairbanks. Police find his residence undisturbed and no evidence of foul play.

Colorado authorities are desperate to take down a sadistic sexual predator who terrorized a young woman before stabbing her to death.

When a beloved couple vanishes just before their annual Christmas party, their family fears the worst - and police must do everything from posing as the Mafia to coaxing information from threatened witnesses in order to solve a years-long mystery.

After a fun night out, Morna Brennen walks into an icy parking lot one dark Minnesota winter and disappears. When body parts begin showing up in the area, police must decipher cryptic clues to understand what happened, who did it... and why.