When the world ends, where will you stand? Will you hold the center, or fall? When his National Guard unit is overrun by the victims of the plague sweeping America, Sergeant First Class Nick Agostine struggles to keep his vow to defend against all enemies, foreign and domestic, and keep those he loves safe. Along the way, he discovers just how far he will go to survive, and the price of redemption. The prequel to the best selling Post Apocalyptic series, Irregular Scout Team One. This is how it all began, and how America fell.