The mid-western town of Raccoon City is facing a mysterious crisis. From mid-May to July, several victims were found murdered by supposed animal attacks in the surrounding Arklay Mountains. The Raccoon City Police Department closed all access to the forest, as new information suggests that the recent victims were attacked by human beings, as the bodies were cannibalized by the attackers. On July 23, after yielding no other results, the police assigned their very own Special Tactics and Rescue Service (S.T.A.R.S) to investigate these attacks. Bravo Team consists of Captain Enrico Marini, Forrest Speyer, Kenneth Sullivan, Richard Aiken, Edward Dewey, and Rebecca Chambers. Enrico, Edward, and Rebecca drove into the forest while the others took a helicopter to scan the area. The ground team's destination is a small hamlet that has put in a 911 call, as it could be linked to the case.
The ground vehicle reached the hamlet and Enrico conducted their investigation. The houses looked abandoned, but it soon became clear that it was the aftermath of carnage. They encountered a man nearby, and when they tried to help, the civilian attacked them. Soon, more came from the houses, which caused the group to flee. They tried to get in contact with Richard, and were successful as the helicopter landed after a malfunction, but were attacked, which caused the death of the pilot, Kevin Dooley. The captain orders a rendezvous, and the trio quickly makes it to a farm before encountering a bear. This creature was extremely hostile and attacked them, but they killed it. After the encounter, they stayed until the other half of the Bravo team arrived and regrouped.
Enrico aborts the mission and wants to return to the city, but must find another means of doing so. They cannot return to the hamlet, so they are stuck on the path that leads them to an abandoned water treatment facility. The place is infested with mysterious creatures, including leech-like humanoids. Bravo Team explores the factory, surviving their encounters with the monsters, looking for any kind of solution. It was quickly discovered that this place was the property of Umbrella Inc, a pharmaceutical company that helped fund Raccoon City projects thanks to its influence.
Underneath the facility is a laboratory complex and dorms, where they discover that this was a hidden facility where they kept their experiments in storage. One such example is a giant leech queen that stalks its prey around the complex. Their salvation comes when it is discovered that there is a warehouse that might lead them close to civilization. Enrico was assumed dead as he was separated from his team, and they had no choice but to continue. The leech queen interferes once again, as the Bravo team takes a stance against the creature in the warehouse, quickly discovering that it has a great weakness to sunlight. Edward sacrifices himself for his teammates, which gives them enough time to bathe the leech in sunlight to weaken it before dealing the final blow.
Epilogue
Bravo Team escapes from the warehouse to greet the dawn, not any closer to the city, but now looking over a mysterious mansion. Having no other options, the survivors make their way to the house, trading one nightmare for another.
