London: present day. In lawless streets, the guilty are left unhindered to go about their business. Returning from a tour of duty in Iraq, former Paratrooper Bryant (Sean Bean) is appalled by what he sees in a country he no longer recognizes. Determined to do something about it, he assembles a group of like-minded souls who resolve to restore the balance between right and wrong, good and evil, enforcing justice with a brutality to match that of the once unpunished, unsuspecting wrongdoers. But when the law of the land is co-opted in this way, who decides when enough is enough?