Beforeigners is the first Norwegian-language series produced by the Nordic region channel of American network HBO. The series concerns the titular "beforeigners", people from different time periods who suddenly appear in the present and their integration into 21st-century Norway. The protagonists are Lars (Nicolai Cleve Broch), an Oslo police detective, and Alfhildr (Krista Kosonen), a Viking-era recruit, who investigate the murder of a Stone Ager. In September 2020, HBO confirmed that the series had been renewed for a second season.
Beforeigners is set in Oslo, where people from the Stone Age, Viking Age, and the 19th century appear in Bjørvika bay. These migrants attempt to integrate into contemporary Norway. Lars and Alfhildr investigate brutal murders with ties to Jack the Ripper.