Hard-bitten U.S Marshal Spencer Sunday is tasked with the burden of escorting two bank robbers back to town to hang. During the journey the trio stop for the night at a secluded way station in the desert and make the acquaintance of a stagecoach full of prostitutes bound for the same destination, The following morning the stage coach is ransacked, the driver and shotgun rider killed and the girls abducted by a band of strange otherworldly desert dwelling monsters. The marshal and his prisoners must band together and form a shaky alliance to rescue the girls and put an end to the monsters.
