Iceland, 2017: When a young Italian tourist is found brutally murdered at a sacred church in northern Iceland, Magnus Jonson, newly returned to the Reykjavik Police Force, is called in to investigate. At the scene, he finds a stunned TV crew, there to film a documentary on the life of the legendary Viking, Gudrid the Wanderer. The documentary experts have unearthed controversial evidence that Christopher Columbus knew more about the existence of America than has ever been previously realised. Magnus begins to suspect that there may be more links to the murdered woman than anyone in the film crew will acknowledge. As jealousies come to the surface, new tensions replace old friendships, and history begins to rewrite itself, a shocking second murder leads Magnus to question everything he thought he knew.