In a world with no guns, a mysterious drifter, a bartender and a young samurai plot revenge against a ruthless leader and his army of thugs, headed by nine diverse and deadly assassins.

When most of the population of Earth is infected by a virus and transformed into flesh eaters and blood drinking creatures, a group of hunters lead by Tao and his sword chase the vampire zombies to eliminate them. Six non-infected survivors try to find the exit of an abandoned hospital crowded of the infected creatures. Meanwhile, the military is ready to bomb the whole area.