Entities from the Past

What if today a man could suddenly find himself in an old western town of the late 1870s? It could happen-should he accidentally step through a time-portal. Forgetting to fill his tank in Kingman, Arizona before heading home to Phoenix, salesman Mark Burger is stranded in the desert after running out of gas. Failing to get a passing motorist to stop and render aid, he sees a cluster of building in the distance. Hoping to find a phone there, he strikes out across the span of desert. Under closer assessment, this appears to be a replica of an old western town, possibly a movie set or a museum. Making contact with people there, it appears they are pretending it is 1879. Or are they pretending?While there, he encounters several unusual characters, none of which seems willing to direct him to a phone. Finding no cooperation from these people whom he perceives unwilling to deviate from the make-believe roles they are playing, he returns to his car. On his return trip, he realizes the town disappears once he nears the road. It is then he comes to the reality he has crossed through a time-portal. He tells no one, not even his wife, what he has discovered. By sheer coincidence, he meets someone who may have a vested interest in what he has seen. Enlisting the help of this individual, he returns. Once there, they not only encounter characters Mark has previously met, but other, more dangerous denizens of this other time.