Winter has seized Alaska, and Trooper Timothy Cronin gets a chilling call sounding like a domestic violence situation involving a chainsaw. But to get to this rural area, Trooper Cronin has to navigate through record snowfall. Then, Trooper Howie Peterson is greeted by a man at a cabin with a 15-inch knife and a rifle. Finally, Trooper Anne Sears responds to a crime against a village public safety officer and has to fly in unpredictable weather. Time to bring the rifles.

It's a criminal homebrew operation, and Trooper Tim Smith must head into a 'dry' village where illegal manufacturing of alcohol has gotten out of control. Meanwhile, Trooper Gordon Young hunts down a dangerous thief and must race to the airport to stop the suspect from fleeing. Later, Trooper Jared Noll makes a seemingly routine traffic stop only to discover that the driver is one of the biggest meth cooks in the valley, and he's got knives with him.