When zombies overrun San Francisco, a desperate group survives by locking themselves inside Alcatraz Prison. When the undead breach the island, our heroes are forced to return to the mainland overrun with the undead.
Overview：When zombies overrun San Francisco, a desperate group survives by locking themselves inside Alcatraz Prison. When the undead breach the island, our heroes are forced to return to the mainland overrun with the undead.
