After Alex Kemp and the New Hope colony are betrayed by Lieutenant Colonel Jonathan Hill, Alex and the few remaining survivors begin a feverish hunt to rescue Alex's young daughter and exact their revenge. But after infiltrating the army, Alex is unable to discover where the man is hiding, until he and the others begin receiving mysterious envelops from an unknown person. Envelops which contain information to the whereabouts of Jonathan Hill and Alex's daughter. Now they are in a race to rescue the child before they are discovered, and before the hordes of walking dead overrun them.