Beforeigners

People from The Stone Age, The Viking Era and the late 19th century inexplicably begin to appear in the coast of modern-day Oslo, Norway, with no memory of how they time traveled in the first place.

Years later, when one of these ?timeigrants? is murdered, an investigation is led by detective Lars Haaland and Alfhildr Enginsdottir, the department's first Viking police officer.