On September 29, Leon began his first day as a police officer with the local P.D. yet deep underneath the city in the secret Umbrella Co. laboratories, a viral outbreak had been let loose. The virus, dubbed the T-virus, caused sever mutations and had the capability to re-animate dead tissue, thus creating... Zombies. Shortly afterwards, following a similar incident in the local Arklay Mountains, the military quarantined the city with plans to use a small tactical nuclear device to eradicate the virus. After his first encounter with the living dead, Leon met with another survivor, Claire Redfield, who had arrived in the city in search of her missing brother, Chris. Together, Leon and Claire decided to seek refuge within the R.P.D.'s headquarters, but after arriving there, they decide to search for a way out of the city separately. During his probe of the R.P.D. precinct, Leon meets another survivor named Ada Wong, a woman who claimed she was looking for her missing boyfriend. Together, they found a secret entrance within the sewer leading to one of Umbrella's secret facilities. Ada is mortally wounded (first, by a mutated William Birkin's claw and later, by a T-103 Tyrant (see: Canon in Resident Evil and Leon discovers that Ada was a spy working for Umbrella's undisclosed competitor. However, at the near end, a mysterious figure (with Ada's voice and silhouette) helps Leon (or Claire) by giving them a rocket launcher to help defeat the Tyrant. Leon is reunited with Claire and the two (along with William Birkin's daughter, Sherry) make their escape through a secret railway and then escape the train, leaving the mutated Birkin to be destroyed by the military's bomb.In 2004, a 27-year-old Leon was assigned to a top-secret organization under the direct control of the President of the United States. He is assigned to guard President Graham's family, but when the President's daughter, Ashley Graham, is kidnapped, Leon's first mission is to track her down. Information gathered pointed to the kidnappers being located in a remote area of Spain. Leon investigates on his own, along with two members of the local police. Unfortunately, it seems something bizarre has happened to the local townsfolk and after the two officers are promptly killed, Leon finds himself relying on his skills once again in a deadly fight for survival. Leon learns from his superiors that the perpetrators are a group called Los Illuminados (from Spanish, meaning The Enlightened ), a religious cult led by a man named Osmund Saddler. This cult uses a mysterious parasitic organism known as las Plagas (Spanish for the Plagues ) to take control of the local townsfolk, as well as many others around the area, such as a group of Mercenaries. Although a seemingly hopeless situation, the fanatical cult finds the formidable Leon to be more than they bargained for as he foils attempt after attempt to kill him. During the course of his mission, Leon is helped by Luis Sera, a man who is revealed to be a researcher who used to work for Saddler, but betrayed him. Leon also once again has a chance encounter with Ada, who is also involved in this incident. She provides assistance to Leon, but has a fight of her own to battle out, as well. Leon is assisted by Ingrid Hunnigan, an information analyst and fellow government official via a communicator. As Leon progresses, however, he finds the transmission hijacked by the cult and he is forced to fend for himself. Leon eventually finds Ashley in a church and he becomes responsible for her safety as the two make their way around Los Illuminados-controlled area. It is revealed, however, that both Leon and Ashley have been injected with the Plagas and are now in a race against time to find a cure for this before they are forever turned into Saddler's slaves. Acquiring weapons from a mysterious merchant, Leon manages to fight his way through many harrowing perils within the local village and a mysterious Castle run by the cult. He eventually fights against two of Saddler's underlings, village chief Bitores Mendez and the Castle's castellan, Ramon Salazar. Leon also confronts his former comrade, Jack Krauser, who was now working as a double agent for both a mystery party and Saddler. It is revealed to the player (but not Leon, necessarily) that this mysterious third player in the conflict is none other than Albert Wesker, whom Ada is also working for. Unknown to Leon, a secret battle is being waged behind the scenes, which is explored in Ada's unlockable scenerio, Separate Ways . Eventually, Ashley is abducted and Leon must race against time to rescue her before her Plaga fully develops, not to mention his own. With continued support from Ada, Leon fights his way through a local military base, where Saddler and the cult have taken refuge. Fighting against both a deadly enemy and the enemy within, this battle tests all of Leon's strength and skill. Leon fights against Krauser for the last time and eventually saves Ashley and himself after removing Las Plagas from within them by use of a special radiation machine developed by Luis late during his mission. Afterwards, Leon battles Saddler in his true form and, with Ada's help (who provides him with a specialized rocket launcher), is able to put an end to him and his plot. After the battle, Ada takes the Plagas sample from Leon at gunpoint and makes her getaway, but gives Leon and Ashley a means to escape, as well, via a jet-ski. Show less «