Transabdominal sonogram of a multilocular right ovarian cyst that is 24 cm in diameter, with the adjacent fallopian tube and uterus. The infundibulo-pelvic ligament carrying the ovarian artery and vein has been divided. This sonogram demonstrates a large, complex cystic mass with vascularity within the septations.
A thirteen-episode first season was ordered on November 19, 2013. The pilot episode premiered at the ATX Television Festival in Austin, Texas, in early June 2014. On August 6, 2014, FX renewed The Strain for a 13-episode second season which premiered on July 12, 2015. On August 7, 2015, FX renewed The Strain for a 10-episode third season which premiered on August 28, 2016. FX renewed the series for a fourth and final season on September 27, 2016, slated to air in summer 2017.
The 26-episode season is split into two parts, containing a total of thirteen episodes each. The first part began its broadcast on September 11, 2014 in its new date and time slot on Thursday at 8:00 pm (ET) for the first four episodes, before returning to its previous time slot of Friday at 7:00 pm (ET).