Justine travels to Idaho to learn more about her real father. There she meets Matt, a country boy who loves the night sky. Together they search for answers surrounding her father's struggle with dementia and his obsession with aliens.

When miners blast for gold in the 1870's, they accidentally release ancient creatures known as Tommyknockers. The Town of Deer Creek, Nevada is soon under siege with only a handful of survivors held up in the local saloon.