When Nya’s powers are disrupted, the Ninja set off in search of answers and find themselves at the bottom of endless oceans where they discover that her powers are linked to an ancient mythical creature.
15 - 1A Big Splash Apr. 04, 2021
15 - 2The Call of the Deep Apr. 04, 2021
15 - 3Unsinkable Apr. 11, 2021
15 - 4Five Thousand Fathoms Down Apr. 11, 2021
15 - 5The Wrath of Kalmaar Apr. 18, 2021
15 - 6Long Live the King Apr. 18, 2021
15 - 7Escape from Merlopia Apr. 25, 2021
15 - 8The Tale of Benthomaar Apr. 25, 2021
15 - 9The Storm Amulet May. 02, 2021
15 - 10Riddle of the Sphinx May. 02, 2021
15 - 11Papergirl May. 09, 2021
15 - 12Master of the Sea May. 09, 2021
15 - 13The Calm Before the Storm May. 16, 2021
15 - 14Assault on Ninjago City May. 16, 2021
15 - 15Nyad May. 23, 2021
15 - 16The Turn of the Tide May. 23, 2021
15 - 17Episode 17 Jul. 06, 2026- 15 - 18Return to Primeval's Eye Oct. 10, 2022
- 15 - 19Crystastrophe Oct. 10, 2022
- 15 - 20Christofern Oct. 10, 2022
- 15 - 21A Lesson in Anger Oct. 10, 2022
- 15 - 22Brave But Foolish Oct. 10, 2022
- 15 - 23Quittin' Time! Oct. 10, 2022
- 15 - 24Return of the Ice Emperor Oct. 10, 2022
- 15 - 25Safe Haven Oct. 10, 2022
- 15 - 26Compatible Oct. 10, 2022
- 15 - 27Distress Calls Oct. 10, 2022
- 15 - 28An Issue of Trust Oct. 10, 2022
- 15 - 29Dragon Form Oct. 10, 2022
- 15 - 30Roots Oct. 10, 2022