Well, the show is based on this trilogy of books written by Guillermo and Chuck. The third book in the trilogy takes place in sort of a post-apocalyptic nuclear winter. In terms of how many survivors there are and what conditions they live in, I definitely don’t want to spoil all that but they are living in a profoundly different world and that’s exciting. The final season is really the third chapter in the story and although it’s radically different on a storytelling level than the third book, it shares some fundamental similarities.
The Strain bows out with its fourth and final season in 2017.