Madrid, summer of 2010. Commissioner María Ruiz investigates the sinister crime of a young man. With no visible identity and no clues or apparent motive, María will begin an investigation…

Ariadna discovers that her grandfather has been searching for the remains of his father, who disappeared during the Civil War. Determined to help him, she travels to Burgos, where a…

Western Pyrenees, year 778. When his land is threatened by the ruthless armies of the Frankish emperor, a Basque warlord asks for help from his ancestral gods.