wild west town invaded by extraterrestrial life

aliens cowboys extraterrestrial invasion towns wildwest ufo western ranch spaceships entities strikes rustic sheriff outlaws saloon sworn gunslingers creatures livestock ranchers prohibited survive resistance intruders desperados hideout cowboysvsaliens territory frontier ghosttown starship abductions encounters standoff renegade outland silvercity pioneers wanted outskirts dusty goldrush oldwest cowpoke wagon bandits targets