Special Forces soldier Jin Quan is betrayed during a mission and becomes a living coordinate for missile guidance. Upon awakening, he finds himself a destitute man unconscious on the streets of Downtown, a place where the underclass gather, their people serving as cannon fodder in the mines. Faced with a life-or-death struggle, Jin Quan awakens as a Demon Swordsman, gifted with the radiation from a dirty bomb explosion in his past life. In this world, Jin Quan will battle the Chosen One.