Wu -- A ninja is... -- Kai -- So, you want to be a ninja? -- Garmadon -- Ultra dragon attack! -- What do ninja wear? -- Jay -- Where do ninja live? -- Vile villains -- Lloyd -- Dragons -- How do you find your dragon form? -- Myths and legends -- Nya -- Battle in the deep -- Overlord -- Enemies of Ninjago -- Zane -- Fire stone mech escape -- Weapons -- Cole -- Ultra sonic raider -- Mastering the elements -- Who will win the tournament of elements? -- Good and evil -- Ice dragon attack -- Skylor -- Ninja gamers -- P.I.X.A.L. -- How do ninjas train? -- Princess Harumi -- Can the ninja stop the sons of Garmadon? -- Teamwork -- Battle at sea! -- Armies attack! -- Escape from the dungeons of Shintaro -- What are the fundamental ninja virtues? -- Monastery of Spinjitzu -- Crystal king -- The final battle -- Attack on the crystal palace -- A new reality -- Can new heroes join team ninja?.