Pretty sure that the plot is that some people live in the abandoned colony nowadays, and nobody knows of their and the colonys existence.
Sarahs character is a tourist and maybe her car breaks down in the woods she gets stuck there.
Poor Chanel his script.
I loved the farm theory but I never had an idea how they could have pulled it off.
In order they'd need another Harmon-esque family living there and that would be MH 2.0