Being intended as an online cooperative game only, Umbrella Corps does not offer much in terms of plot. It is instead gameplay focused, like many of Capcom's mobile games. Two years after the Global Bioterrorist Attacks and twelve years after Umbrella's collapse in 2003, the corporation's viral samples and research data were ransacked and sold on the black market. Consequently, bioterrorism has spiralled into global threat. By the game's setting in 2015, the resulting viral outbreaks being too numerous for even the B.S.A.A. to contend with, entire districts have been simply locked down and abandoned. Within these districts, independent "Zombie Hunters" commit illegal activities for their own reasons