It's John Ford meets Dario Argento in a brutal, action-packed horror-western...
Assigned to Fort Summerfield, Wyoming, in the summer of 1866, Lieutenant Thomas Fairfax faces a fight for his life as insurgent Sioux continue a guerilla campaign against the U.S. Army.
Finding himself at odds with his politically motivated commanding officer, Colonel James Carriker, and the genocidal Captain Benjamin Sheridan, Fairfax battles to strike a balance between diplomacy and force.
But there are far deadlier forces lurking on the Great Plains. And when the Indian-hating Sheridan kills a Sioux warrior in a valley said by the indigenous people to be cursed, demons rise from the earth. The beings swarm across the prairie, attacking homesteaders, troops, and local tribes, transforming everyone into hell-born predators.
Now, as men of all tribes face extinction, sworn enemies must put politics and power aside, and join forces--or all the human races will be wiped out.