Watch Free Online HD Moviesjoy. This short film follows Nya and Kai as they race through the futuristic streets of NINJAGO City! Chased by a group of mysterious mechanical enemy, the brother-sister ninja team are trying to reach Borg Tower before the city is succumbed to darkness. With them, a powerful token. Will they make it in time? What is this special token? What do Nya and Kai need to do? So many questions - all of them answered in this NINJAGO LEGACY short.