Suicide rates are climbing in native Alaskan communities, and troopers race to save a woman holding a gun to her head. Meanwhile, troopers police the island of Little Diomede, located just over two miles from Russia in the Bering Strait. With temperatures of -40¯ and wind gusts up to 80 mph, catching criminals here is uniquely challenging. Troopers must fly in and land on the ice-covered Bering Strait, apprehend a sex offender, and transport him via snowmobile and plane back to the mainland.

It's an all-out manhunt in -33¯ temperatures when troopers scour the streets of Fairbanks in search of a fugitive. Jewelry and other items have been stolen, and now a break-in has been reported, which could be a clue. Three hundred twenty miles south, in a region known for rugged mountains and pristine glaciers, Officer Vic Dillon's on the graveyard shift and is investigating a racially motivated assault.