High school freshman Shaun Ouillette vanishes the day after a snowstorm; an anonymous letter leads detectives into the frozen woods, where they make a discovery that will tear the small town apart.

After a blizzard, a son visits his parents, only to find them murdered. A peculiar local might know what happened during the snowstorm.

Weeks after the Christmas disappearance of 22-year-old Dean Fawcett, detectives discover a headless body in the snow; a handwritten note points to a dangerous set of suspects, sending investigators on a cross-country manhunt to unravel the truth.

On a freezing Minnesota night, a shooting leaves a young police officer fighting for his life by the roadside; as his wife awaits his fate, a heart-stopping manhunt ensues.

Seventy-four-year-old widow Virginia Johannessen is shot dead in her home; then, another widow is murdered on the same street; as police unravel the truth, they discover they've made a chilling mistake.

A pastor finds bartender Robbie Schmidt strangled in the snow shortly before Christmas; Robbie's family is shocked when suspicion falls on his closest friend.

A woman and her two young children go missing, then two other boys also disappear, prompting investigators to ask whether there's a serial predator on the loose in the wintry landscape of rural Missouri.

Noel Alkaramla, 21, vanishes just before Thanksgiving; investigators interrogate Noel's girlfriend and many others, but the answers can only be found in the icy depths of the Hudson River.