"Fortitude" is a British detective TV show set in a fictional town located in snowy Norway. One day, a brutal murder occurs in Fortitude: unknown assailants attack a renowned professor. In response to the incident, a British officer arrives in the town, as the deceased was a citizen of the United Kingdom. His visit sparks outrage from the local police chief and the governor of Fortitude, although they have no grounds to object. As the investigation unfolds, new details emerge about the murder.