Life transforms from the mundane to a survival of the fittest
The Bible says that the dead shall rise again but Christians had imagined that the risen dead would be normal humans again, not slow moving and guttural zombies who must feast on fresh blood and live tissue in order to survive.
Your dead shall live; their bodies shall rise. You who dwell in the dust, awake and sing for joy! For your dew is a dew of light, and the earth will give birth to the dead. (Isaiah 26:19)
In the 'Walking Dead', the action takes place on the southeastern area of the United States. In the companion series, 'Fear the Walking Dead', which intersects at some point with some of the 'Walking Dead' characters, the story is told how the virus occurred on the west coast, the trials and tribulations of characters in Los Angeles area, San Diego, Mexicali, Tijuana, and other compounds on farms in Mexico.
Life transforms from the mundane to a survival of the fittest, kill or be killed, kill or be bitten, a constant battle that takes the main characters from town to town, along familiar roads now strewn with abandoned bloody cars, and an ever increasing army of walking zombies in search of a living, breathing victim.
A group of survivors, led by officer Rick, eventually finds a prison with tall fences, barbed wire and cells that can be cleaned of corpses and the walking dead. This prison becomes their freedom, their home for the foreseeable future. They feel safe inside, they can grow food in the courtyard, they have some medical supplies scavenged along the way or during their daily incursions “outside.”