A married couple, Matt and Naomi, are on a book tour in Norway when they find themselves trapped in their car amidst a severe snowstorm. The blizzard encases their vehicle entirely in ice and snow, leaving them with no means of escape. As the days go by, temperatures continue to drop, and their limited supply of food and water dwindles. Tensions rise between the couple, exacerbated by their increasingly desperate situation and differing opinions on how to best survive.

Struggling against the worsening conditions, the couple endures physical and psychological challenges, grappling with the reality of their circumstances and the strain it places on their relationship. With hope dwindling, they must decide whether to brave the hostile cold outside in search of help or continue to wait for rescue inside their frozen prison.