Leola and Ozzie vs. The World

Leola never did like eating meat. It's gross knowing that you were chewing on something that used to be alive, something that carried diseases, something that used to poop. That's why she's a vegetarian.
One day, something goes very wrong, cows go extinct. Good news for Leola, bad for beef lovers. Scientists try to bring back dead cow genes and make another cow to repopulate.
Science worked and beef was now back on the selves of supermarkets but something wasn't right with the meat.
The chemical inside it reacts to human blood cells and turns the people into zombies.
Now Leola has to keep her little sister alive and protect her from the dead and the living.