No one knows how it started or why the world was kept in the dark for so long. A few isolated news reports made it into the tabloids about the walking dead and zombie sighting blogs popped up across the internet. There was a cult following at first...
...and then the military moved in. Whispers of flu epidemics hit the major news networks. Towns and cities were closed off and quarantined.
Eventually, the word 'zombie' became a kitchen table discussion and not a Halloween and horror movie amusement. For the average Joe, life remained the same even when the animated dead were slowly starting to take over the countryside and outnumber the living.
That was when the military lost control and the society crumbled.