Fishermen catch fish during a big storm.
"Quick! Help me unload this cargo! "One of the fishermen said.
Another fisherman throws a rope at the Dock Man. He grabs it and tries to keep the boat steady despite the rough seas.
Suddenly, a dark figure appeared next to their boat.
"Forget the storm! Something is happening in the water. "Dock man is worried.
"It's just schools of fish. "
A wave of water rises above the boat. Two shiny green eyes are on it. The wave growls and crashes the boat onto the quay.
The fishermen are still shocked by what happened.
"Did you see this?"
"My boat! Where is my boat? "
They find the boat a little further away. One of the sins is being shocked to see who is missing a part.
"What beast can leave a tooth mark like that?"
"My ... my boat ..."
At the same time. In the arronax. Océane who drew is in a trance.
His eyes shine with cyan blue light.
"He came back…" she said before coming out of her trance.
The scene changes for the Moonpool room at the Aronnax. Fontaine heads towards Ant and Océane.
"Ant, what were you and Océane doing with Jeffrey?"
"I train him. "Ant replied.
"Are you training a fish?"
"Yes."
"To do what?"
"Ant wants to train Jeffrey to seek. "
"Do you know at least what it is to look for, Océane?"
"No, but Ant says fish can do that."
"Ant is the dog that does that. A fish would have no interest in doing it. "
"It might be useful for one of our missions."
"How? 'Or' What? "
"Uh…" The young boy has no idea.
"I don't know yet, Fontaine. But once I train it, I'm sure I'll find some practical uses. "
"Like sending messages or carrying mini items. "The young mermaid suggests.
"Jeffrey is a fish. He has the memory of three seconds, without offending you little sister. "
"I do not take." The siren does not understand allusion.
"And if you manage to train him, he forgets everything right away. "
"It's not true. Trust my fish. "
"It's lost in advance. "
"In that case, let's do a test. Dive into the pool. "
"OK. But I'm only doing it to prove that it doesn't work and to make fun of you. "
The girl with the pink wick dives into the pool and resurfaces. Oceane gives a glow stick to her older sister.
"Here's our chance, Jeffrey. "
The yellow fish stays put with a distracted smile.
"Go look. "
They wait for hours. A fin swims near Fontaine, the girl with the wick jumps but notes that it is Kaiko.
"Mom!"
"Jokes don't get old."
The two swim towards the edge of the Moonpool.
"So what were you doing?"
"I teach my fish to go get it. "
"No, he's not."
"Ant, don't apply your sisters in your tests. Fontaine trusts the fish. And where is your father? "
"I think dad is still in his office. "
The three leave the Moonpool room. Océane continues Ant's experience a little before joining them.
"Go ahead Jeffrey, you can do it."
Jeffrey goes to find the light stick in the water and brings it to the little mermaid.
"Well done, Jeffrey. "
Océane swims in one of the pipes to reach the room of Will's office.
(Note: The Nekton family installed water pipes to allow Océane to access several rooms in the Aronnax.
The scene changes for the Aronnax study room.
Will studies an old map of the ocean.
"Did you know we had newer cards?"
"I know. Kaiko. "
"Thanks to technology, we have satellite maps and some of them are not drawn in pencil.
William was explaining to his wife the usefulness of the Oceans charts and the incident that happened to the fishermen. The little mermaid arrives in the room and sees the map, she goes into a trance.
"Here Be Dragons ... The dragon is awake ..."
"Did you say something? "
The little mermaid wakes up from her trance.
"Eh? No nothing."
The Nekton family are investigating the case of the mysterious Dragon. Their ship travels from Florida to Greenland.
The Nektons begin their research with the Aronnax.
"Dad, do dragons really exist? "
"Unlikely. Case according to the history of Greenland. Locals say they saw something big near Greenland. The founder of the capital and those who have been on a ship have reported seeing a sea serpent over their ship. My parents swore to have seen one during their search for the lost Lemuri and they were helped by a mysterious woman ... "
(Now that I think about it, the woman my parents described looks a lot like Océane ...)
"Truly? I did not know. "
The machine's radar near Fontaine beeps several times and she looks to starboard.
"Periode."
They find the boat half destroyed.
"This is the missing boat of the fishermen. "
"How is it possible? We are 20 kilometers from the Greenlandic coast. "
"I do not know."
"Well. Let's take a closer look! "
The young boy goes to the underwater equipment room, puts on the armor and dives and also brings his fish.
Océane was followed by his big brother.
The other three are looking through the White Knight's camera.
"Ant, did you find something strange?"
"What if, strangely, a fishing boat is miles away from where it went missing? Yes, it's called that strange. Isn't it, Océane? Océane? "
The little mermaid is still in a trance. She's examining a huge tooth.
"He was here ..."
"Océane! I have been calling you for hours."
Océane comes out of her trance. "Sorry, I was lost in my thoughts. I found a tooth."
"It's too toothy to be that of a shark." Fontaine said.
"Ant, Océane retournons à l' Aronnax."
"Good idea. Precisely Océane was starting to be afraid. "
Suddenly the radar detects an object approaching. A big red dot advances towards the ship.
"Ant, Océane. Come back quickly! "
A sound of growling is heard. Ant, Jeffrey and Océane turn around. A plesiosaur appeared.
The dinosaur saw all three. The prehistoric reptile was going to eat Ant but the Little Mermaid gets in between and talks to the beast.
"It's not food. This boy is under my protection. " Océane said with a voice different from hers.
The plesiosaurs obey the siren and swim elsewhere.
"You can open your eyes, big brother. "
"Phew."
"Ant, Océane are you okay? "
"Everything is fine. I feel like my armor has warmed up. "
The scene changes for the surface. Fishermen avoid returning to fish because of the famous dragon.
"I don't believe in his sailor superstitions. "
"Oh yes. If you don't believe it, why aren't you on your boat? "Nereus asks the young men.
"I will do it. "But at the time that went to his boat.
The young fisherman sees water bubbles rise to the surface, he screams and clings to Nereus.
"Haven't you ever seen a submarine? "
Aronnax surfaces. The Nektons come out in civilian clothes. Océane is wearing a white dress, sitting on a wheelchair with a sheet to hide her fishtail.
"Hi. I am Will Nekton, this is my family. We heard you have a monster problem. "
"The Dragon? It is not really a problem. You just need to be away from the water. "
"You have a young man who ..."
"Yes, I noticed it. "The young man kissed. "This monster appears every 40 years. I saw her 40 years ago before that and 40 years ago. An earthquake, then the monster appears. "
"Why every 40 years? "
"How will I know? Maybe the young lady will have the answer? " Nereus point Océane.
"..."
"It's real, isn't it? I saw it." Dock man asks.
"Yes, we'll see too."
The Nektons tell the fisherman that their boat has been eaten by the beast.
The man with the long beard walks towards Ant and Océane who was in front of the piece of the missing boat.
"Hello, Antaeus Nekton and Océane Nekton. My name is Nereus.
"How did I know my full name? "
"Antaeus, the others won't understand. You see, the dragon is not a danger. "
"Believe me, this dragon is one. He almost ate me."
"Except the little mermaid who protects you?"
"How do you know about my sister? "
"This is part of one of the secrets of the oceans and this creature has one."
"It's not an earthquake. Somewhere it has a trench that has opened and soon it is going to close again. And inside is the secret."
"What secret? How are we going to find him? "
"Ant, I think we didn't trust this man." The Little Mermaid doesn't trust Nereus.
"You find it. I trust you and the Lemurian priestess. Also I have this for your father too. " The old man handed Ant an envelope.
The two hurry to tell their parents everything. Their submarine is submerged in the water.
Will opens the envelope. The content is a photo of Will's parents.
"Nereus knew my parents. I will have more questions for him. "
"He guessed that Océane is a mermaid and said the trench might close. "
"We must hurry. Kaiko. "
The Aronnax moves to where it had the earthquake.
"The earthquake originated somewhere around here but I can't see anything."
The little mermaid goes into a trance.
"It is here. The trench is near. Descend a few meters below. "
Kaiko wonders how her adopted daughter can know this so it's the first time she sees this place.
Thanks to the indications of Océane. Will, Kaiko and Fontaine go inside the cave with the Rover. They find an ancient object and take it.
Ant and Océane remained on the ship.
The mini submarine explores the cave but the creature is there and hits the ship with its fin.
The rover crashes into the cave wall, the locator beacon is broken and the electricity is cut off.
"Don't panic, this may make things worse. Ant and Océane are still on Aronnax. "
Inside the big submarine. The young boy panics.
"Oh no! They are in danger!" Ant panic.
Océane sees her big brother panicked. Océane sings a melody that calms her.
"Now I have a clear idea. Jeffrey. "Ant ties a mini tag to the fin of the fish." Jeffrey is going to get my family! "
The yellow fish look confused.
"Please, Jeffrey. "
Océane said a word. The fish join the Rover. Fontaine is amazed that the trick Ant tried to teach his fish worked.
The little mermaid swims in the darkness of the cave, luckily her fin shines with a pale blue light.
She approaches the plesiosaur and orders it to help the out mini-submarine.
"How? 'Or' What? "
The trench closes. After that the story of the dragon was stopped. Finally Will can examine the object.
The opener to find parchment that has been preserved for centuries
"It's written in Lemurian."