Riddick has to kill all of the main assassins one at a time with nothing but his blade. Kind of like an assassin attempt. He must kill EVERYONE that stared in the movies, the MAIN characters, hero's and villains...including trainers. Can he succeed? If not, who will stop him. The twist about this is, they are aware of someone coming to kill them but they can not call any soldiers and guns are not allowed, they can only defend themselves with a sword.