Rick and his group learn the dangers of living behind the safety of the Community walls, and much worse: what happens when those walls give way to those outside. Collects The Walking Dead #73-84.

Police officer Rick Grimes is shot on the job and wakes up a month later to find that the world that he knows is gone. Zombies have taken over and are killing and eating those who are still alive. He sets out toward Atlanta in the hope that his family is still alive and endures many horrors along the way.

The world we knew is gone. An epidemic of apocalyptic proportions has swept the globe causing the dead to rise and feed on the living. Survivors have taken refuge in a prison, but daily life inside the barbed wire is a made a nightmare by the constant attacks by the zombies.

Rick Grimes and the other survivors continue trying to make their prison shelter a home, but a helicopter crash nearby leads them to discover another group of survivors nearby who are nearly as dangerous as the zombies.