The Strain Season 4 Episode 1 The Worm Turns

Nine months after the warhead detonated in New York, the strigoi have formed a "partnership" with the humans, offering free medical care in return for blood donations. Eph is in Philadelphia trying to make a life for himself on the fringes, while Vasily and Quinlan try to acquire a nuclear warhead. Meanwhile, the Master plans to raise Zack as his next host body.