U.S. Marshal Eli Bonnet has the unpleasant task of pursuing a cold-blooded killer in the heart of Alaska's frozen Yukon territory during the last great Gold Rush. With only his trusty hound, an old prospector, and Hannah Twigg to back him up, Bonnet is ready to take on his quarry. But he quicky learns that the Alaskan frontier may be a formidable adversary.