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Ninjago: Masters of Spinjitzu Season 3

After a time of peace, the Ninja are called back into action. The spirit of the defeated Overlord has infected the electric grid of Ninjago and is using all available technology to exact his revenge on Lloyd. Nowhere is safe but fortunately, the Ninja have been given the powerful Techno Blades. But the only problem is that they have no idea how to use them.