After encountering a hostile and delirious man (voiced by Nathan Vetterlein) in the local church, they discover that the town is overrun, and head to a boathouse for rescue. However, they find the road blocked, and travel the rest of the way on foot.

Finding an armored delivery truck, the group uses it to reach the town of Riverside. Zoey is forced to kill him, and the helicopter crashes in an industrial district outside the city. Fighting their way through the city’s streets, subway and sewers, they are rescued from the hospital’s roof by the pilot, only to discover he is infected. After narrowly avoiding these new infected (as seen in the introduction video), the survivors are alerted to an evacuation point at the roof of Mercy Hospital by a passing helicopter.

Two weeks after the first infection, four immune survivors-William “Bill” Overbeck (voiced by Jim French), a Green Beret and Vietnam veteran Zoey (voiced by Jen Taylor), a college student Louis (voiced by Earl Alexander), a district account manager, and Francis (voiced by Vince Valenzuela), an outlaw biker-make their way out of the city of Fairfield, only to discover that the infection is creating dangerous mutations in some of its hosts. Pennsylvania suffers an outbreak of the “Green Flu”, a highly contagious pathogen that causes extreme aggression, mutation to the body cells, and loss of higher brain functions (essentially zombifying those who catch the flu).

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