OK. The nuclear part is post-terrorist nuclear attacks on the west, The middle east was wasted in retaliation, and India and Pakistan destroyed themselves. The world is divided into power blocks, and world citizens in these blocs are controlled by genetic screening. Hunt used to be an activist, but was also a genetics genius and helped screen for potential rage/criminality after his family were killed by home-grown terrorists. The world also has a “network” that controls everything, and *all* technology is fed through it. Hunt’s journey is one of re-awakening of his cynicism and discovery of just how far the people who control the information have really gone. The world seems normal, but in fact the people in power use and abuse that power for elite families worldwide. He is led on this journey by the very type of person who shouldn’t have survived the screening (maybe even hunt himself), and the irony is that this person has a better grasp on the problem than anyone else. Hunt has a choice: Keep humanity caged, or reboot civilisation with all the horror that would result.