Cowboy Zombies (2013)

The Arizona Territory, the 1870's. Marshal Frank Wilcox, along with a Buffalo Soldier from the U.S. Army, must galvanize a group of survivors to fight back when the living dead rise and seek the flesh of the living. It's a world gone mad and a battle against the unthinkable. Joined by an Apache Chief and an outlaw prisoner, the group must learn how to survive in a time where the dead walk.