In the third season of "The Strain," the fight for survival becomes even more desperate as the strigoi threat continues to grow. New York City is on the brink of collapse, and Dr. Ephraim Goodweather, along with his team, must find new strategies to combat the relentless vampire menace. The Master reveals more of his sinister plans, and the struggle intensifies as the heroes face increasingly dire circumstances. Alliances are tested, sacrifices are made, and the battle for humanity's future reaches a critical turning point.