The first Norwegian series made by HBO is a crazy and fun detective thriller. People from three different centuries start washing up at our time in the Oslo bay: from the Stone Age, the Viking Age, and the 19th century. Before you know it, downtown Oslo is full of people drying up hunted animals and camping in the gardens of official buildings. And seven years later, one woman, from the Viking Age, becomes the first modern-day "multi-temporal" cop. Together with a modern-day detective, they try to solve new crimes which involve people from different time periods.
If all of this sounds silly, don't worry: Beforeigners pulls it all off. All the multi-century premise does is bring originality to the otherwise over-exploited buddy-cop show genre. It hits the perfect balance between familiar and different.