When Geronimo threatens to widen the conflict with the U.S. by recruiting the Comanches and the Sioux to his cause, Slaughter devises a plan to lure the renegade Apache into attacking a wagon train filled with disguised U.S. army troops.

Slaughter is elected sheriff of Tombstone, Arizona.

Slaughter makes plans to capture a gang of stagecoach robbers, unaware that they've overheard him and are setting a trap of their own -- to kill him.

The relative peace that has settled over Tomstone since Slaughter became sheriff may soon be broken. A professional killer has come to town.