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.
16 Episodes
A Big Splash
A Big SplashEpisode 1
The Call of the Deep
The Call of the DeepEpisode 2
Unsinkable
UnsinkableEpisode 3
Five Thousand Fathoms Down
Five Thousand Fathoms DownEpisode 4
The Wrath of Kalmaar
The Wrath of KalmaarEpisode 5
Long Live the King
Long Live the KingEpisode 6
Escape from Merlopia
Escape from MerlopiaEpisode 7
The Tale of Benthomaar
The Tale of BenthomaarEpisode 8
The Storm Amulet
The Storm AmuletEpisode 9
Riddle of the Sphinx
Riddle of the SphinxEpisode 10
Papergirl
PapergirlEpisode 11
Master of the Sea
Master of the SeaEpisode 12
The Calm Before the Storm
The Calm Before the StormEpisode 13
Assault on Ninjago City
Assault on Ninjago CityEpisode 14
Nyad
NyadEpisode 15
The Turn of the Tide
The Turn of the TideEpisode 16
Cast of Seabound
Vincent TongKai (voice)
Sam VincentLloyd Garmadon (voice)
Michael AdamthwaiteJay (voice)
Brent MillerZane (voice)
Kirby MorrowCole (voice)
Kelly MetzgerNya (voice)
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