"Z Nation" is a dynamic ensemble drama that will plunge viewers into a fully-imagined, post-zombie America and take them on adventures with a diverse group of richly-drawn characters. Getting to know the reluctant heroes, their flaws, idiosyncrasies, and moral dilemmas will ultimately become the heart of the show.

Z Nation starts three years after the zombie virus has gutted the country, a team of everyday heroes must transport the only known survivor of the plague from New York to California, where the last functioning viral lab waits for his blood. Although the antibodies he carries are the world's last, best hope for a vaccine, he hides a dark secret that threatens them all. With humankind's survival at stake, the ragtag band embarks on a journey of survival across three thousand miles of rusted-out post-apocalyptic America.

Z NATION follows a team of everyday heroes, led by Lieutenant Warren (Kellita Smith), during their epic struggle to save humanity. Season 4 begins with a mind-bending jump in time. Murphy and Warren find themselves alive in Zona, the zombie free playground for billionaires. Meanwhile, the rest of our heroes are fighting alongside the last of the humans against the mutated Zombie Virus and the unkillable "MAD-Z's." Warren's mysterious dream of a black rainbow and flesh-eating black rain propels the season forward and puts our heroes in the middle of an even worse Zompocalypse. Here they will have to battle Jugalo Zombies and find the Zombified President of the United States - or at least his thumb.