Alien Showdown: The Day the Old West Stood Still (2013)

Plot

In 1854, an extraterrestrial scout touches down on Earth, driven by the urgency to secure water and sustenance. Upon fulfilling its needs, it plans to summon a devastating invasion force. Amidst the chaos, a solitary cowboy rises to confront the otherworldly threat. With the fate of humanity hanging in the balance, he must harness his bravery and skills to thwart the alien's sinister plans, or risk losing everything in a battle for survival.