A flu. That's all they said it was at first. Just a virus. And that's what everyone believed it was. what else could it have been? The doctors didn't know. They had never seen anything like it before . And they sure as hell couldn't explain it.
It was simple enough at first. you got infected and start going insane, Then a fever, followed by seizures Then you died.
But you'd never stay that way for long!
One infection in Zootopia's downtown is what started it, some savage mammal with glowing blue veins, coated with blood was running and screaming through the city centre, biting and mauling who ever was unfortunate enough to cross his eyesight, Turning them into the same monster he was, soon one infectious bite led to another, the insane mammal was put down but the infection still spread throughout.
Soon a state of emergency was called and residents of all districts were under strict rules and curfews as they tried to cover it up, and attempt to contain it. But it was all in vain, as 3 months later society and law/order are diminished, the city and most of the districts residents were reduced to mindless monsters that were reduced to one primal instinct, to kill and eat as much as possible until they eventually die. 3 months later and all that's left is a city destroyed by looters, and the massive amounts of the savage horde.
Among the small gangs of people left, Judy hopps and her new Partner Nick Wilde, a fast, former con-fox and hardened survivor of the apocalypse, will risk it all in hopes of finding a safe haven, in this new world. Can they make it or are they just chasing after shadows?