Jerry was just a college kid trying to catch one more weekend of fun before senior year when the ash hit. His college, his home town, his family-all wiped out in the blink of an eye. With the nation teetering on the edge of ruin, he joins the military to help with the search and rescue but finds that the powers that be want to use this natural disaster as cover for an unnatural war. The last war. Winner take all that's left. In the satellite photos, though, he sees evidence that the lands where he grew up might still have some green grass. With no idea whether anyone still lives there, Jerry dreams of someday returning to those pastures, even if it means living there all alone. Meanwhile, Josh, Adaline, Claire and the rest of the denizens of the last valley have built a thriving community-and even have contact with another community across the mountains. But a disease is sweeping through Overstreet, one that could wipe them all out. Twenty years before, the cure would have been easy to affect, but now, their isolation may be their doom. They can only pray for a miracle.