Accidentally, three sibling children are left alone in a winter storm on the island of Spitsbergen. No-one on the main land, an ocean apart, knows where they are. It's a dramatic fight for survival.

Julia and her twin siblings Sindre and Ida have moved to a small town with their mother. Desperate to reach their father, who is working in southern Norway, they secretly jump aboard a helicopter flying in his direction. Unfortunately, the helicopter changes its route, and soon they find themselves lost and alone on a deserted island. Now the three are forced to face the epic powers of nature, as both blizzards and hungry polar bears threaten their very existence.