The BEST Episodes of Nadia - The Secret of Blue Water

Every episode ever - ranked by fan votes!

Last Updated: Nov 21, 2019

Network: NHK

The series centers around Nadia, a young girl of unknown origins, and Jean, a young French inventor. Early in the story, the two protagonists are chased by Grandis Granva, Sanson, and Hanson, a group of jewel thieves who pursue Nadia for the blue jeweled pendant she possesses. After being rescued by Captain Nemo and his submarine, the Super Sea Cruiser Nautilus, the jewel thieves and the young protagonists join forces and participate in the struggle against the Neo-Atlantean forces, who seek to dominate the world. In the process, Nadia and Jean save the world from violent domination by the Neo-Atlantean forces led by Gargoyle, explore worldly mysteries and the powers of the blue pendant, uncover Nadia's hidden family ties, and ultimately discover the secret origins of Nadia.

Successor to the Stars

#1 - Successor to the Stars

Season 1 - Episode 39

All the pieces fall into place for the final stage of Jean and Nadia's journey around the world, Nemo and Gargoyle's long-standing feud, and the secret behind Nadia's Blue Water pendant. I won't tell you how it ends....

star 8.75
12 votes
To the Sky

#2 - To the Sky

Season 1 - Episode 38

The New Nautilus and Gargoyle, now aboard Red Noah, face off in a spectacular duel of pyrotechnics, lasers, and, ultimately, wills. Midway through, both crafts head into outer space. After finally breaking in, Nemo, Jean, and Electra confront Gargoyle, who now has Nadia under his control.

star 8.33
12 votes
The New Nautilus

#3 - The New Nautilus

Season 1 - Episode 36

Gargoyle's battleships appear over Tartessos. To save Jean and the others, Nadia surrenders herself... but not before Jean swears to save her. Forced to flee from Gargoyle's battleships, our pals run into Captain Nemo and his crew, who have survived... and now operate a superpowerful battleship called the New Nautilus.

star 8.25
12 votes
The Secret of Blue Water

#4 - The Secret of Blue Water

Season 1 - Episode 35

Finally, our pals arrive at Nadia's real homeland--Tartessos. As they tour through its long forgotten ruins, our heroine finally reveals her darkest secrets... including who she is. How will all this affect her relationships with everyone, especially Jean?

star 8.08
12 votes
Electra the Traitor

#5 - Electra the Traitor

Season 1 - Episode 22

After relocating Jean, Nadia, Marie, and King to his personal quarters (which he will later jettison from the doomed Nautilus), Nemo finds Electra holding a gun on him. In an extended flashback sequence, Electra reveals her tormented past, her complicated feelings for the captain... and a horrifying connection between Nadia and Nemo.

star 8.00
13 votes
Emperor Neo

#6 - Emperor Neo

Season 1 - Episode 37

Gargoyle takes Nadia before the puppet leader of Neo-Atlantis, Emperor Neo, who reveals that he has a strong connection with both Nadia and Nemo. Eight time zones away, Nemo and the others plan to fight Gargoyle in a final duel. Throughout, both Jean and Nadia learn about the origins of the Atlanteans.

star 7.91
11 votes
Nautilus, The Fantastic Submarine

#7 - Nautilus, The Fantastic Submarine

Season 1 - Episode 4

Jean, Nadia, and King are rescued by another vessel--an impressive and mysterious submarine known as the Nautilus (and yes, the captain's name is Nemo). Here, they learn from Nemo's pretty first officer, a young woman named Electra, that the vessel is in pursuit of a sinister enemy. After an unsuccessful attack against the deadly submarine Garfish, the Nautilus repairs Jean's sea plane, and the children take off for another adventure.

star 7.88
17 votes
Writers: 大川久男
The Tower of Babel

#8 - The Tower of Babel

Season 1 - Episode 7

Imprisoned by the wicked Gargoyle, Nadia is forced to admit that she gave her Blue Water to Jean before turning herself in (to save Marie and King from a horrible fate). As the search for Jean is on, the boy desperately tries to find her. Simultaneously, Grandis, Sanson, and Hanson, who have also been imprisoned by the soldiers, break out of their prison cell and attempt to escape. While Gargoyle tours Nadia around his base, he showcases Neo-Atlantis's secret weapon, a tower known as Babel with the power to obliterate an entire island!

star 7.81
16 votes
Writers: 大川久男
Farewell, Red Noah

#9 - Farewell, Red Noah

Season 1 - Episode 31

Trapped inside a mysterious chamber, Nadia learns from a disembodied voice that their island home is actually a space satellite, Red Noah--and that she is the heir to the throne of Atlantis as well as not human! Tremors engulf the island as Grandis and the others prepare to set off, but Jean returns to save Nadia.

star 7.77
13 votes
Mission to Rescue Nadia

#10 - Mission to Rescue Nadia

Season 1 - Episode 8

In a surprising turn of events, Grandis and her boys join forces with Jean to save Nadia, Marie, and King from Gargoyle. Their escape attempt nearly backfires, until the Nautilus shows up to save them....

star 7.75
16 votes
Writers: 大川久男
Farewell Nautilus

#11 - Farewell Nautilus

Season 1 - Episode 21

The Nautilus is ensnared by Gargoyle's super powerful SeaNet magnet. In the fight that follows, Grandis, Sanson and Hanson escape on the Gratan (to help free Nemo and the others from Gargoyle's battleship). The battle culminates with the badly damaged Nautilus plummeting into the sea....

star 7.75
12 votes
The Riddle of the Giant Sea Monsters

#12 - The Riddle of the Giant Sea Monsters

Season 1 - Episode 3

Jean, Nadia, and King are rescued by an American battleship in pursuit of sea monsters, who have apparently been responsible for sinking ships. That night, the battleship is attacked, and Jean, Nadia, and King are thrown overboard....

star 7.71
17 votes
Writers: 大川久男
The Nautilus Faces Its Biggest Crisis

#13 - The Nautilus Faces Its Biggest Crisis

Season 1 - Episode 15

Captain Nemo's vessel falls into yet another deadly trap set by Gargoyle--one which involves the Garfish and a surprise attack from American battleships. The subsequent damage costs the lives of several sailors--including a friendly young engineer named Ensign Fait. Jean, who had become friends with Fait, is horrified and devastated to witness someone being killed by the technology he had so strongly idealized with.

star 7.60
15 votes
Writers: 大川久男
Labyrinth in the Earth

#14 - Labyrinth in the Earth

Season 1 - Episode 30

Four months afterward, the Gratan is nearly repaired, and soon our pals will set off for Africa. But first Jean and Nadia go off on a hike which leads them to a mysterious underground cavern that turns out to be more than they suspected. The exploration culminates when Nadia falls into a trance and vanishes behind a wall, leaving her clothes in Jean's arms! During all this, Ayerton tries to make his move on Grandis.

star 7.55
11 votes
A Crowning Performance by the Gratan

#15 - A Crowning Performance by the Gratan

Season 1 - Episode 10

In pursuit of Gargoyle, the Nautilus becomes trapped in a dangerous underwater mine field. Sanson and Hanson jump aboard the Gratan to clear the mines before they detonate. Jean sneaks on to help the two men....

star 7.53
15 votes
Writers: 大川久男
The Mystery of the Lost Continent

#16 - The Mystery of the Lost Continent

Season 1 - Episode 16

The victims of Gargoyle's latest attack are taken to the long-forgotten underworld of Atlantis to be buried. While there, Jean discovers that his father's ship was sunk by the Garfish. Nadia also learns that she must keep the Blue Water at all costs, no matter what pain or damage it may cause.

star 7.53
15 votes
Writers: 大川久男
Nemo's Secret

#17 - Nemo's Secret

Season 1 - Episode 9

Jean, Nadia, Marie, and King are taken aboard the Nautilus with their new enemies-turned allies, Grandis, Sanson, and Hanson. Technophiles Jean and Hanson are thrilled to be aboard the Nautilus. Grandis becomes dangerously smitten with Captain Nemo, much to Sanson's consternation. Nadia, meanwhile, is very suspicious about the submarine and its crew, particularly Nemo, who reacts with surprise upon seeing her for the first time....

star 7.42
12 votes
Writers: 大川久男
Girl at the Eiffel Tower

#18 - Girl at the Eiffel Tower

Season 1 - Episode 1

Jean, a 14-year-old orphan, sailing into Paris to help his uncle design an airplane for the Paris Exposition's flight competition meets a pretty young girl named Nadia and her pet lion cub, King. He ends up rescuing her from a woman named Grandis who is trying to get Nadia's jewel, the Blue Water. Nadia leaves the only home she ever knew - a circus - as Jean has offered to help her search for her place of origin, starting with the random choice of Africa...

star 7.40
25 votes
Writers: 大川久男
The Little Fugitive

#19 - The Little Fugitive

Season 1 - Episode 2

With Grandis and her two accomplices, Sanson and Hanson, in pursuit, Jean takes Nadia back to his home in LeHarve. His grumpy aunt refuses to take Nadia in, but Jean lets Nadia stay at his own house. The following day, Jean and Nadia set off for Africa in one of his aeroplanes. They do not get far, however, when Jean's invention fails and falls into the sea....

star 7.35
20 votes
Writers: 大川久男
Infiltration of the Secret Base

#20 - Infiltration of the Secret Base

Season 1 - Episode 6

Marie and King are captured by the soldiers, so Jean and Nadia set off to a forbidding looking area to save them. Their rescue mission leads the pair to the base of the soldiers, who call themselves Neo-Atlantis, and their evil commander, Gargoyle, wants Nadia and her Blue Water at all costs.

star 7.27
15 votes
Writers: 大川久男
New Recruits for the Nautilus

#21 - New Recruits for the Nautilus

Season 1 - Episode 11

Nemo and Electra appoint Jean, Nadia, and the others to new positions on the Nautilus. Jean is permitted access to Electra's library of books so that he can learn how to use the knowledge for mankind's benefit; simultaneously, he, Sanson, and Hanson are given a tour of the Nautilus. Marie and King, meanwhile, are reduced to schooling from Electra, much to their dismay. Grandis and Nadia are assigned to cook in the kitchen. An intense rivalry is ignited between Electra and Grandis as they compete over Nemo's love. Finally, Jean discovers the source of the Nautilus's power, and is quite disturbed when Nemo tells him that the vessel is a killing machine....

star 7.20
15 votes
Writers: 大川久男
Marie's Island

#22 - Marie's Island

Season 1 - Episode 5

Jean, Nadia, and King are shot down over a strange island where they find themselves outrunning a squadron of sinister masked soldiers. In their struggle to survive, they find an orphan girl, Marie, who lost her parents to the soldiers.

star 7.15
13 votes
Writers: 大川久男
Nemo's Best Friend

#23 - Nemo's Best Friend

Season 1 - Episode 19

Nemo takes Jean and Nadia on a tour of his secret base, where he introduces the children to his closest friend, a talking whale named Irion, who hints at Nadia's responsibility to hold the Blue Water.

star 7.08
12 votes
Nautilus vs. Nautilus

#24 - Nautilus vs. Nautilus

Season 1 - Episode 18

En route to Captain Nemo's home base of Antarctica, the Nautilus finds itself attacked by a territorial Nautilus shellfish.

star 6.93
14 votes
Jean's New Invention

#25 - Jean's New Invention

Season 1 - Episode 17

Jean is tired of being treated like a child by the Nautilus crew. Hoping to cheer him up, Nadia suggests Jean to build another aircraft. Inspired, he sets off to do just that. At first he is determined to construct the new helicopter by himself, but then realizes he still needs the support of some grown-ups. With Hanson's help, Jean completes the craft and takes Nadia on a very delightful test flight. While airborne, Jean promises that he will one day take Nadia to Africa....

star 6.85
13 votes
Writers: 大川久男