Oops! You need to enable JavaScript in your browser to start watching. CITV Ninjago Prime Empire Unsinkable Series 3 - Episode 7- The ninjas embark on a mission to uncover the source of a mysterious power signal that is disrupting marine life and Nya's powers. Tue Tuesday 31 Aug 5pm 15 mins Share this episode: Copied to clipboard Share on Facebook Share on Twitter Copy link to share