Machinist Mate First Class Jackson Creed and Marine Sergeant Joel "Cruze" Kelly have faced hordes of undead, rogue military units, and a constant living nightmare as they try to navigate the apocalypse. Now they are close to their goal of reaching Los Angeles where they hope to learn the origin of the plague that has affected the US. Along the way they've been harried by the shadow mercenary group known only as Bright Star but that is all about to change. Questions will be answered and lives will be altered if they can only survive the harrowing trip. Poisoned Earth is the penultimate volume in the Z-Risen series.