Homeless and alone in the perilous backwoods of Alaska, musher Jessie Arnold leaps at the chance to drive a friend's Winnebago back from Idaho. Hitting the road will help her recover from the devastating fire that destroyed her home. But when she picks up a teenage runaway, Jessie cannot guess that the terror from which the young man is running will soon catch up to her. Now, in a danger-filled wilderness-with only her lead dog, Tank, by her side-Jessie faces the ultimate challenge. In a terrifying race against time, she must stop a killer looking to unleash his murderous rage on anyone who gets in his way.