death perception in dc

paul Jackson, a US marine soldier stationed in Syria in 2010 to stop the dictator al asad, they manage to do so but al asad had a fail switch that detonated a nuclear weapon destroying the city and killing everyone, Paul survives but finds himself in the middle of gotham with nothing but a knife, faced by numerous threats while seeing hallucinations of dark twisted lines that covers everything and screens of a weird system in the air