Second Life in an apathetic apocalypse

19 year old James Watt,just fired from his job,living alone in a wreck of an apartment,suffering from depression and after these recent events is left on the verge of suicide,but after being down in a bunker ready to end his life,an experimental war bomb project over in Russia goes wrong and a massive explosion decimates most of the areas of the world. Society is practically destroyed,but for James it could be the start of a new life...a second chance. Could the worst thing to have possibly happened to him end up being the best thing that's happened to him?