The Fourth and Final Season of The Strain Premieres July 16 Photo Credit: Michael Gibson/FX FX drama The Strain will return for its fourth and final season on Sunday, July 16. Description - Nine months have passed. The world has fallen into darkness, and the strigoi are in control. The explosion at the end of season three triggered a global nuclear apocalypse. The resulting nuclear winter liberated the strigoi, allowing them to move about during daytime, and allowing the Master to establish a totalitarian regime. Preying on the fears of the populace, the Master and his minions have created an unsettling alliance in "The Partnership." The majority of humans are now working for the strigoi, operating with a single understanding of collaborate or die. With the world in disarray and our heroes disbanded, each of them will have to overcome personal hardship and defy death for even the smallest chance at fighting back. download file now