Beforeigners (season 1)

A strange and inexplicable phenomenon takes place all over the world. In the beginning people saw a flash of the light over the ocean. After that people come from nowhere. They are the people from three different ages. Stone age, the age of vikings and the nineteenth century. Why does it happen? The beforeigners don't realize anything. One thing is clear. They come and come. And the authorities have to do something. A plan of the integration of these people is begun to be developed.