Snowflakes fall as Trooper Howie Peterson responds to a snow-machine accident where the victim may be dead or alive. As night falls, he frantically sets out into the backwoods of avalanche country to find the man. Then, a horrific stabbing sends trooper Blake Calhoun on a search for the stabber in a maze of unsecured cabins, where the potentially armed man could be hiding behind any door. Later, Trooper Anthony Stariha tries to catch a speeding vehicle before reaching the populous town center.