Each winter the crew at the Shackleton South Pole Research Facility faces nine months of isolation, round-the-clock darkness, and one of the most extreme climates on the planet.
For thirty-something mechanical engineer Cass Jennings, Antarctica offers an opportunity to finally escape the guilt of her troubled past and to rebuild her life.
But the death of a colleague triggers a series of mysterious incidents that push Cass and the rest of the forty-four-person crew to the limits of thei.
