Sadie, a young Native American VanLifer and her husband Ed find their trip derailed when they spend the night in a campground overseen by a maniacal woman who brutally punishes campers that don't follow her rules.

Peaceful evening becomes bloody violent chaos. Masked intruders descend on Tom and Grace's home. The couple fights for their lives.

In New York City, a young guy falls for the daughter of his father's nemesis.

Forced underground by the next ice age, a struggling outpost of survivors must fight to preserve humanity against a threat even more savage than nature.