The science is way off but the drama of the series is what attracts viewers to this.

As good as it is, "The Road" portrayed a post apocalyptic USA a lot better. Based on the graphic novel by Cormack McCarthy, it is a very simple story of a father and son trying to walk across the USA to the SE (Florida?) to seek survival. Along the way they meet diverse elements and remnants of humanity, both good and very bad . The fact that it is based on real science is what intrigued me.

I really like Pedro Pascal (Mandalorian and The Equalizer 2) and he does add a lot to the series TLOU but you should also see "The Road" and then you'll see why it is much more intense.