This is a apocalypse. A virus has been appearing in survivors of disasters. It's gotten through cannibalism. The virus turns people into zombies. These people don't show symptoms right away it takes at least 1 month to show symptoms then days later they turn into them. A antidote has been in progress but the virus is changing, adapting. It's turning its victims into zombies way faster from a month to a week. What will happen to our protagonist and his friends?