In mankind's grasp for the future, a sinister foe known only as Gargoyle begins his plans to take over the world. Nadia, with the help of a young inventor, Jean Ratlique, and Captain Nemo of the submarine Nautilus, must fight to save the world from Gargoyle and Neo-Atlantis.
1990-04-13 - 1991-04-12
| Title | Name |
|---|---|
| Season 1, Episode 1 | Girl at the Eiffel Tower |
| Season 1, Episode 2 | The Little Fugitive |
| Season 1, Episode 3 | The Riddle of the Giant Sea Monsters |
| Season 1, Episode 4 | Nautilus, The Fantastic Submarine |
| Season 1, Episode 5 | Marie's Island |
| Season 1, Episode 6 | Infiltration of the Secret Base |
| Season 1, Episode 7 | The Tower of Babel |
| Season 1, Episode 8 | Mission to Rescue Nadia |
| Season 1, Episode 9 | Nemo's Secret |
| Season 1, Episode 10 | A Crowning Performance by the Gratan |
| Season 1, Episode 11 | New Recruits for the Nautilus |
| Season 1, Episode 12 | Grandis and Her First Love |
| Season 1, Episode 13 | Run, Marie, Run! |
| Season 1, Episode 14 | The Valley of Dinicthys |
| Season 1, Episode 15 | The Nautilus Faces Its Biggest Crisis |
| Season 1, Episode 16 | The Mystery of the Lost Continent |
| Season 1, Episode 17 | Jean's New Invention |
| Season 1, Episode 18 | Nautilus vs. Nautilus |
| Season 1, Episode 19 | Nemo's Best Friend |
| Season 1, Episode 20 | Jean Makes a Mistake |
| Season 1, Episode 21 | Farewell Nautilus |
| Season 1, Episode 22 | Electra the Traitor |
| Season 1, Episode 23 | Young Drifters |
| Season 1, Episode 24 | Lincoln Island |
| Season 1, Episode 25 | The First Kiss |
| Season 1, Episode 26 | King, the Lonely Lion |
| Season 1, Episode 27 | The Island of the Witch |
| Season 1, Episode 28 | The Floating Island |
| Season 1, Episode 29 | King vs. King |
| Season 1, Episode 30 | Labyrinth in the Earth |
| Season 1, Episode 31 | Farewell, Red Noah |
| Season 1, Episode 32 | Nadia's Love |
| Season 1, Episode 33 | King's Rescue |
| Season 1, Episode 34 | My Darling Nadia |
| Season 1, Episode 35 | The Secret of Blue Water |
| Season 1, Episode 36 | The New Nautilus |
| Season 1, Episode 37 | Emperor Neo |
| Season 1, Episode 38 | To the Sky |
| Season 1, Episode 39 | Successor to the Stars |