Rookie police officer Leon S. Kennedy arrives in Raccoon City. "Nearly all of its citizens have been transformed into zombies by an outbreak of the T-virus, a new type of biological weapon secretly developed by the pharmaceutical company Umbrella. Leon S. Kennedy, a rookie police officer on his first day in the local force, and Claire Redfield, a college student looking for her brother Chris. Having just arrived in the city, Leon and Claire make their way to the Raccoon Police Department, seeking protection from the mutated population. However, after a runaway truck crashes into their police car and they are forced to split up after some zombies attack, Leon/Claire make it to the Police Headquarters. The player discovers that the police station is abandoned and that most of the police officers have been killed, and that Chris has left town to investigate the Umbrella headquarters in Europe. With no remaining motivation to stay, the two protagonists split up to look for other survivors and flee the city. While searching for an escape route, Claire meets a little girl named Sherry, who is on the run from an unknown creature, and Leon encounters Ada Wong, who claims to be looking for her boyfriend John, an Umbrella researcher." (https://en.wikipedia.org/wiki/Resid.....t_Evil_2#Plot)
