The storyline doesn't make sense now....spoilers
So detonating a nuke over the ocean near the city brings about....dark skies indefinitely? What about the rest of the planet?
In the books they made strategically placed nuclear reactors meltdown, bringing about 22 hours of darkness worldwide and the strigoi set up the blood factories and took over.
However, in this storyline, NYC may be screwed for some time but the rest of the world is still going. So....how are they going to end this in 1 more season?