When a mysterious worldwide plague starts putting millions of people into deadly comas, Earths foremost expert on the bizarre, John Constantine, steps in with the cure, After traveling from the dreary alleys of London to the glittering boulevards of L.A., Constantine realizes that a cadre of wicked demons and hellish monsters is behind the outbreak, and hell have to sacrifice more than himself to put an end to the nightmare. Collects HELLBLAZER #230-238 and the HELLBLAZER: ALL HIS ENGINES original graphic novel.