Resident Evil: Vendetta.The story is set in between the events of Resident Evil 6 and Resident Evil 7: Biohazard. BSAA agent Chris Redfield is tracking Glenn Arias, a death merchant who is on a mission of vengeance against the U.S. government for killing his family and wife at their wedding. Chris and his fellow agents infiltrate a mansion in Mexico, after Cathy White, their undercover source who was following Arias' organization, vanished along with her son, Zack. Inside the mansion, Chris' fellow agents are ambushed by aggressive zombies (Zack included) and death traps, with Chris being the sole survivor and barely making it out alive. Chris then comes face-to-face with Arias outside the mansion and engages him in CQC, only to be swiftly defeated. He then finds out that Cathy has become a zombie, who now obeys Arias. As Arias leaves with his associates, Maria and Diego Gomez, the BSAA arrives just in time to rescue Chris by slaughtering Kathy and the remaining zombie horde with Chris vowing revenge on Arias. Meanwhile, Rebecca Chambers, now a professor at a university specializing in vaccine development, a former member of Chris' S.T.A.R.S. unit and survivor of the infamous mansion incident, studies a new virus coined Animality virus or "A-virus", that is capable of laying dormant inside any individual until the right trigger is presented. She identifies three component to the virus: the base virus, the trigger virus and the vaccine. The research labs are soon attacked by Maria, who releases the virus via aerosol form. While her colleagues quickly turn into zombies, Rebecca is able to formulate a vaccine that she administers on herself immediately thereby being immune to the gas. After fending off some zombies, Rebecca is then rescued by Chris, who briefs her on Arias's plan and motives...