A mysterious young woman named Hester Shaw joins forces with Anna Fang, a dangerous outlaw with a bounty on her head, and Tom Natsworthy, an outcast from London, to lead a rebellion against a giant predator city on wheels.
Former SWAT leader David Hendrix and hard-partying movie star Brody Walker must cut their ride-along short when a police training facility is attacked by a team of mercenaries.