Roba norvegese prodotta da HBO Europe dovrebbe arrivare presto in tutto il continente.The series takes place in Oslo, where suddenly there are several flashes of light in the sea in Bjųrvika. The flashes of light turn out to be a worldwide phenomenon where people from the past suddenly emerge in the present - people from the Stone Age, the Viking Age and the 19th century. Flashforward five years, and the so-called "beforeigners" are struggling to adapt into modern Norwegian society.
A woman with Stone Age tattoos is found dead on a beach, and police investigator Lars Haaland is put in charge of the investigation. He is assigned the newly graduated police investigator Alfhildr Enginnsdottir, formerly a shield-maiden in the 11th century, as his partner. She is the first in the police service with a "multi-temporal background".