Less than a week after Matthew Fox and Patrick Wilson joined the cast of Caliber Media's Western Bone Tomahawk, the production has added Lili Simmons (True Detective), Evan Jonigkeit (Girls), Kathryn Morris (Cold Case) and horror veterans David Arquette and Sid Haig.The plot follows four men who set off on a mission to save a group of captives from a tribe of cannibals who live on the edge of civilization.