July 24
Although hours have passed since Bravo Team's investigation, none have returned from their mission. On the orders of their captain, Albert Wesker, the Alpha Team is formed to rescue their lost teammates. It consists of Wesker, Chris Redfield, Jill Valentine, Barry Burton, Joseph Frost, and their pilot, Brad Veckers. At night, they went into the Arklay Mountains, finding Bravo Team's chopper. After landing, the team investigates the dark woods, reaching the helicopter and finding the pilot dead. Joseph was mauled to death by a pack of bloodthirsty Dobermans who chased the Alpha Team. They are saved when they reach a mansion nearby and enter the large foyer. A gunshot is heard, and they investigate in the dining room, where they find fresh blood in front of the fireplace. Wesker orders Chris and Jill to go into the next room, leading them into a hallway where they find the source of the noise. Their comrade, Kenneth, has been murdered and is in the process of being eaten by a zombie. The creature turns to attack them, but they flee back to the dining room, where the zombie follow them. The Alpha team kills it, confirming that the Bravo team is indeed here, but decides to split up to cover more ground. Chris with Wesker, and Jill with Barry.
Chris Redfield
There are more zombies roaming the halls, along with animals such as dogs and crows that are extremely hostile and deadly. The mansion itself contains secrets, crafted puzzles, and traps. Chris and Wesker are forcefully separated, but the former manages to find Rebecca safe and sound in the first aid room. She explains what happened in the past 24 hours, how the zombies were the ones responsible for the murders, and that they had to survive at the water treatment plant. Richard was also in the room, very injured and under the medic's care. He warns him of a giant snake that roams the library, also giving him his radio just in case. They part ways for now, as Chris continues to try to find more survivors.
The radio picks up Brad's frequency as the pilot tries to get in contact with the survivors, but Chris cannot answer as the radio is partially broken. He explores the cemetery, taking him to the dormitories that are adjacent to the mansion. It was infested with wasps, but he took care of the problem with pesticide. Before he explored further, he found Wesker alive. The captain orders him to return to the mansion to protect Rebecca and Richard after confirming that they are alive, as they are probably the only Bravo Team members left, while he offers to look for Jill and Barry. Chris obeys as he returns to the mansion.
Afterwards, he is menaced by a new type of creature, the Hunter. He finds that there are more than one of them roaming the house, and saves Rebecca in the nick of time before being killed by one of them. She explained that Richard had recovered, but was separated from him by the hunters that appeared, luring them away. He goes to try to save him, and he ends up in the library, where he finally encounters the large snake. Richard sacrifices his life to save him, being devoured whole. Chris kills the viper in revenge before returning to Rebecca, making it his mission to get into contact with Brad, as he is their only hope of escape.
After gathering what they needed, they head back to the foyer and reunite with Jill and Barry. They gave the tragic news of Enrico's death, but now have the means to gain access to a secret entrance behind the foyer stairs.
Jill Valentine
Meanwhile, Jill and Barry discovers Forest's dead body on the balcony, but they continue onward towards the library, which is home to a gigantic viper. They escape, but Jill was poisoned, in which case her partner saves her life with serum. They split up by accident, as Jill travels through the cemetery and encounters a mysterious creature that renders her unconscious while exploring a dilapidated cabin. She woke up in time to evade the creature and entered the dormitory building. She heard human voices in one of the rooms, but after listening in for a while, she finds Barry in it alone, dismissing her concerns. Underneath the dorms is a small laboratory complex that has an aqua ring that houses experimental sharks. They drained the water to kill them, but also found plant roots that were alive and dangerous. Using the lab to their advantage, they created a J-Volt plant killer and used it on the roots. Plant 42, a monstrous plant that resides in the dorms attacks them, but Barry found a flamethrower and used it to kill it.
After it's death, they found information about catacombs nearby. It holds the key to gaining access to a larger laboratory complex under the mansion. This is when they encounter hunters on the way, but they avoid them as much as possible. Inside, there is a secret hole which contains the grave of George Trevor, a famous architect from the 1960s who suddenly disappeared along with his wife and daughter. They found his journal, in his words he created the mansion at the request of Earl Ozwell Spencer, who planned to have him killed after its completion, but the architect died in the hole he was trapped in. The entrance to the catacombs is in the lower courtyard, and they used the means to get there.
To their surprise, they found Enrico alive but injured, the man trying to warn them of a traitor in their ranks. Before he could say much, he was assassinated, the figure fled the scene before they could catch them. Having no other choice, they venture into the catacombs, avoiding the giant spiders as best as they can while also escaping various traps. The creature in chains returns to hunt them, but they outrun it at every turn. Secrets are revealed when they find research papers of scientists experimenting on a woman and her child, named Jessica and Lisa Trevor. Jessica died during the experiments, but her daughter survived, subjected to testing for a retrograde virus that physically and mentally deteriorated her over the years. The scientists kept her in the caverns, using her as a wellspring for various viruses that they extracted from her body.
They found her makeshift lodging, where they took the key they had been looking for and escaped via ladder, which took them back to the cabin outside the mansion. Jill and Barry reunited with Chris and Rebecca in the foyer, telling them that they had the key to the underground labs.
Alpha Team
They found themselves in the caverns, and at the end, there was a stone coffin in the middle, surrounded by a bottomless cliff. Lisa comes in to attack them, but the STARS members open the coffin where Lisa's mother was buried. She takes the skull, then willfully jumps into the chasm, clearing the way forward. However, the laboratory complex is infested with zombies as well, but regardless, they explore the place. They found a horrible secret: that this mansion and everything in it was the property of Umbrella Inc, a world-famous pharmaceutical company. They have been secretly experimenting with their creation, the T(Tyrant)-Virus, in this location. It has the terrible effect of turning humans and animals into the undead. An accident leaked the virus around the mansion, dooming this place and the people inside.
The STARS members took the elevator deeper into the lab, and found Wesker there, as he showed his true colors. He was the traitor and Enrico's assassin. At that point, he orders Barry to hold them at gunpoint, as he reveals the man as his pawn. The truth is that STARS have been sent into the woods and mansion as guinea pigs to test the might of their virus and record combat data for the company. He forced Barry to go along with the plan after threatening the safety of his family, but intended for all of the members to die. In order to complete the job, he shows them one of the lab's successful projects, the T-002, also known as the Tyrant. An 8-foot humanoid inside of a tube. Barry turns on Wesker as he injures him, but it is too late as the liquid drains the tube, awakening the beast. It stabs Wesker through the glass, killing him, and then it turns its attention to the survivors. With their combined effort, they subdued the Tyrant.
Chris informs them that Brad is still around and that they can use the elevator to get to the roof and use signal flares to escape. Rebecca also suggested using the facility's self-destruct system to destroy this place, and they all agreed to the plan. They first manually set the destruction in motion, then ran for their lives as they made it to the roof and used the flares to attract the helicopter's attention. The tyrant follows the survivors to the roof, confronting them one last time. Brad, hovering from above, drops a rocket launcher, which is used to kill the tyrant. The survivors escaped just in time before the mansion's destruction. At sunrise, the remaining STARS members return to Raccoon City after surviving their nightmarish ordeal, knowing Umbrella's dangerous secrets. They all agree to expose the company's crimes, and upon their return to the city, they inform their chief of the events of the mansion, but he dismisses their claims. Barry returns home to find his family safe and sound. The next day, STARS was disbanded due to the loss of many of its members, planning to replace them with a swat team in the near future.
Phoenix Ashes
Unbeknownst to the fleeing alpha team, Wesker revives from the dead from a powerful virus he was injected that activated when he expired. He soon tried to retrieve the data from the main computer, only to be thwarted by an outside source. Cutting his losses, he begins his escape from the mansion, testing his new superhuman abilities. Lisa Trevor unexpectedly blocks his way at every turn, but he wears her down long enough to smash a chandelier on her body before escaping the mansion's destruction. Cutting ties with Umbrella completely, he goes into hiding afterwards, working with another organization to achieve his goals for the future.
