The most violent night in the history of Anchorage, Alaska leaves seven dead - including four teens. And, the small police department is virtually overwhelmed by the string of shootings until clues lead them to the unlikeliest of suspects.

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.