 Set mainly in 2114 it tells of how the Fourth World War took the lives of three billion people when a powerful necromagus called Sabbat raised all the corpses in the world as zombies.The series is mainly notable because it was Ennis' longest Dredd story, it killed off most of the supporting cast of the "Judge Dredd" series, and it was the first story to feature Johnny Alpha since he was killed off at the end of the "Strontium Dog" series (from Alpha's point of view it was set two years before his death).Dredd and Alpha had previously met in "Top Dog", published a year before, in which he and his partner-in-crime-fighting Wulf Sternhammer went back in time to Dredd's Mega-City One in order to capture two criminals wanted in their own time period.