In 2016, Helen, an historian, and David, a government official, journey to the Antarctic. Helen is in search of a story; three years before, Nara, a young woman scientist disappeared from an Antarctic base; she is presumed dead, though her body has never been recovered. When an international emergency forces Helen and David to over-winter in the Antarctic, a more complex story than the official record emerges - of what happened to Nara, Luke the pilot and Nara's lover Alexander, and of what is happening to the ice. Sitting a Nara's desk, reading her diaries on a snowed-in Antarctic base, Helen wonders if the ice will ever give up its secrets.