When Orkney woman Rose is shipwrecked on the shores of Rupert's Land, she quickly falls in love with Alexander, a Half-caste man who is guiding her people into the dark heart of the continent. But after the death of her father at the hands of another Native, Rose turns against Alexander and all his kind. Heartbroken, Alexander returns to his wild life of running buffalo on the prairie. Although parted from Rose by endless miles and hard fate, his heart remains bound to hers, and on the eve of war he is compelled to reclaim her love, setting himself against his people amid a conflict that will help form a nation.