[A virus has broken out a few years ago that if you're infected, you'll turn into mindless monsters called "ghosts" that are in search for any living thing they can get their dead hands on]

Lee Know works with a group to make a cure and has been giving the mission to bring a sample to a classified location for testing

he walks on the deserted streets with the bag that has the sample in it. He's ready to get rid of anything that could slow him down in his way to the location