The side trawler Mafurinn is hit by a major storm just as they prepare to turn for home. Thirty-two men aboard, and a hold full of redfish. The sea is cold enough to kill a man in minutes, and the trawler quickly ices up in the biting frost and violent tempest. The heavy icing weighs down the already fully laden craft, which is pummelled by one breaker after another – and here, out on the open sea, there is no exit route. Distress signals from other ships in the same circumstance and be heard from the fishing grounds around them. It is a battle of life and death.