An idealistic FBI agent is enlisted by a government task force to aid in the escalating war against drugs at the border area between the U.S. and Mexico.
Columbus, Tallahassee, Wichita, and Little Rock move to the American heartland as they face off against evolved zombies, fellow survivors, and the growing pains of the snarky makeshift family.
Two leading computer scientists work toward their goal of Technological Singularity, as a radical anti-technology organization fights to prevent them from creating a world where computers can transcend the abilities of the human brain.