As development of the Zeztz Driver nears completion, Baku comes under attack from Nox, who has been manipulated by Three and transformed into a ruthless warrior. Despite fighting back with the Capsem, Baku finds himself increasingly overwhelmed by Nox’s relentless assault. Meanwhile, in the real world, Three senses a threat to his plans and forcibly awakens Zero in an effort to stop the Driver from being completed, setting the stage for a desperate battle on multiple fronts.