A ragged fur peddler arrives at a remote outpost of the Hudson Bay Company in the winter of 1766 with a lump of gold, claiming that there is plenty more like it further north at a place called Ox Lake. The outpost’s chief factor, Magnus Norton, dreams of instant riches and launches a secret and perilous expedition to find the treasure and bring it back. Led by a family of native guides, the party of prospectors includes Norton’s brutish deputy, John Shaw, and Thomas Hearn, the insular and intellectual first mate from the factory’s whaling sloop. During their long journey north, Shaw’s callousness and arrogance lead him to commit an act of sexual violence whose disastrous consequences will only fully emerge once they reach their final destination.