The game takes place in the midst of the zombie apocalypse. You are one of the few survivors of a pandemic that killed most of the world's population. As you get older, you realize that the world is changing. You don't know what to do or how to survive in this new world. You are on your own.

There is a huge number of missions to complete and survival to achieve. You have to find a way to get home and save your family. The pandemic was not the only reason for the world's destruction. A much bigger war is about to begin. You need to find a way to protect yourself and survive.