When hundreds of huge holes mysteriously appeared overnight in the frozen tundra north of the Arctic Circle, geologist Jack Oswald picked Angele Menendez, his climatologist wife, to determine if the record temperatures due to climate change were the cause. But the holes were not natural. They were unnatural portals for an invading army of demons. Together with Aileen O'Shannon, a 1,400-year-old sorceress demon-hunter, the three survivors of the research team sent to study the holes had only one chance: to flee down the dangerous Dalton Highway towards the relative safety of Fairbanks. However, the advancing horde of devils, imps, hellhounds, and gargoyles will stop at nothing to prevent their prey from escaping. It is a 350-mile race with simple rules. Win and live; lose and die...