A shy student trying to reach his family in Ohio, a gun-toting bruiser in search of the last Twinkie and a pair of sisters striving to get to an amusement park join forces in a trek across a zombie-filled America.
When the menace known as the Joker wreaks havoc and chaos on the people of Gotham, Batman must accept one of the greatest psychological and physical tests of his ability to fight injustice.