The movie series is based on Japanese video game by the same name. There is a genetic research facility called “Hive” underneath the Raccoon city. A thief steals the T-virus and contaminates Hive with it. As a defense mechanism, the supercomputer, Red Queen, shuts down all the doors and releases the gas to kill everybody. All the scientists present in the lab turn to zombies. Now it is upon the special military unit to fight that supercomputer and also save the survivors from the zombie apocalypse.