As WWII looms, a wealthy widow hires an amateur archaeologist to excavate the burial mounds on her estate. When they make a historic discovery, the echoes of Britain's past resonate in the face of its uncertain future.
It is 1879 in the Dakota Territories, a band of men who set out to find and recover a family of settlers that has mysteriously vanished from their home. Expecting the offenders to be a band of fierce natives, but they soon discover that the real enemy stalks them from below.