Tremors 4: The Legend Begins

Tremors 4: The Legend Begins is a video starring Michael Gross, Sara Botsford, and Billy Drago. A prequel to Tremors (1990), this movie tells us about how the town of Perfection, Nevada became founded and how they defended it...
In 1889, seventeen men die under mysterious circumstances, and spooked by recent events, the miners who populate the town leave in droves until there's nothing left but a shell of a community.