Ninjago City calls young Lloyd, aka the Green Ninja, and his friends, secret warriors and Great LEGO Masters, to its defense. Led by kung fu master Wu, as smart as he is witty, they must defeat the evil dictator Garmadon, the Villainous Villain himself, who turns out to be Lloyd's father. Robots against robots, son against father; an epic clash will test the mettle of this fierce but not the most disciplined team of modern ninjas, who must learn to temper their ego in order to realize their full potential.