As a deadly virus cripples society, fate intertwines the lives of two survivors, forging an unlikely alliance in a world engulfed by chaos.

In Delaney, Georgia, an antigenic shift in the H7N9 bird flu virus triggers a catastrophic outbreak, jumping from birds to humans with devastating effects. Despite the federal government's attempts to downplay the severity, the contagion ravages communities, leading to an unprecedented death toll and the swift imposition of martial law.

At a maximum-security federal penitentiary south of Tucson, Arizona, Teddy Sanders watches the structured world around him crumble as the virus breaches the prison walls, indiscriminately claiming the lives of guards and inmates. Overwhelmed by chaos, Teddy navigates a maze of threats and alliances to escape his concrete tomb.

Just fifty miles away, Jane fights to keep her son safe in a rapidly deteriorating Tucson, battling looters and an increasingly oppressive military presence. Her desperate search for supplies becomes a daily struggle for survival.

As their paths intersect, Teddy and Jane must make pivotal choices that will shape their futures. Can they find hope and salvation in a world falling apart?