In 1868, William Standing, a man shadowed by his history, is forced into thievery, taking a majestic horse that is half mustang, half Arabian. He returns to an unspeakable tragedy: his sister's homestead ravaged by the Cheyenne Dog Soldiers, a tribe notorious for their fearsome warfare, leaving only the children taken captive. Driven by desperation, Standing tracks the Cheyenne, witnessing the aftermath of their raids.
In an unexpected confrontation,...