Victory in the Final Battle between the Gold Ninja and the Overlord has ushered in a new era of peace and begun a technological renaissance. Time has passed and the Ninja have become obsolete in this new hi-tech world. Just when they think all is safe in Ninjago, they're called back into action when the reclusive inventor Cyrus Borg warns them the Overlord has survived as a digital virus and is trapped within the Digiverse. The Ninja will learn the Overlord seeks to steal Lloyd's golden power to enable him to escape his digital prison and reign as the great prophesized destructor, "The Golden Master". And to aid his villainous plot, he's created a new technological menace more powerful than any foe the Ninja have ever faced - Nindroids.