Many years after umberalla and the tri cell corps. are gone a new leader in the t and g virus step out of the shadows and into the limelight. The Half Moon corperation a bio terrorist organization has brought back the research from the t virus and g virus. During a trial run using the t virus and the gvirus to make faster and stronger soldiers, the soldiers got loose and it all began again the expirements had a thirst for blood. Their victims did not die the virus was spred through the saliva of the soldiers the t and g virus quickly spred through out liberty city leaving behind nothing but distruction and mutated zombies.