Harold Perrineau and Kellita Smith are part of the ensemble cast for Syfy’s upcoming "Z Nation," an all-new zombie series set to debut in the fall.

From production company The Asylum ("Sharknado"), the 13-episode action-horror series starts 3 years after a zombie virus has gutted the country, as 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. The ragtag band embarks on a journey of survival across three thousand miles of rusted-out post-apocalyptic America.

Perrineau will play Hammond, the leader of the group, as they head west, from New York to California. Smith will play Addy – a disparate wanderer drawn to the team to survive.

Tom Everett Scott, DJ Qualls, and Michael Welch also star in the drama, which is coming to Syfy in September.

Watch the first trailer below: