Hidden in his makeshift laboratory deep within a secluded forest, a scientist fallen into madness, has created the ultimate virus which he plans to unleash against our capitalist society. When his experiments on innocent victims don't go as planned, the abominations he's created break free and escape into the wilderness. The infection spreads as vultures devour the remains of his freakish monsters, transforming the birds into mutations driven by "The Rage", an insane bloodlust for human flesh.