In the sleepy and secluded town of Barrow, Alaska -- the northernmost settlement in North America -- its citizens are preparing for the annual coming of the Dark, when the sun will set for more than thirty consecutive days and nights.

But this year, the Dark will bring something else.

From across the frozen wasteland, a horrifying evil descends upon Barrow, mercilessly besieging its residents with unrelenting terror and swift death. And as the darkness continues and the thirty days of night seemingly have no end in sight, Barrow's only remaining hope lies with Sheriff Eben Oleson and Deputy Stella Oleson, a husband and wife who are torn between saving the town they love and their own survival...