On September 28, 1998 — exactly twenty-four hours before the events of Resident Evil 2 — former S.T.A.R.S. member Jill Valentine fights her way through a Raccoon City already overrun by the T-virus. The pharmaceutical giant Umbrella secretly engineered this new biological weapon, and most of the city's population has been transformed into zombies. Jill's only goal is to escape alive, while the story fills in the full context of the T-virus outbreak and reveals the fate that awaits Raccoon City and everyone still inside it.