A mid-western town in the United States called Raccoon City was destroyed when a mutagenic viral weapon known as the T-virus was leaked into the Arklay Mountains in May of 1998, followed by the release of the T-virus into the sewers of Raccoon City in September of the same year. The resulting incident forced the United States government to destroy Raccoon City via surgical missile strike after most of the population was infected with the leaked viral strains, becoming zombies. Although the Umbrella Corporation was implicated in the incident and severely pressured by outside influences to confess their crimes and abort their research, they refused to do so, conducting further research into the strains in clandestine, secluded laboratories. When a large amount of a recently developed hybrid