Season 1 (1990)
7.20 avg 39 episodes 7.3 → 8.3 25 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Girl at the Eiffel Tower | 7.3 | 106 |
| 2 | The Little Fugitive | 7.0 | 92 |
| 3 | The Riddle of the Giant Sea Monsters | 7.2 | 82 |
| 4 | Nautilus, the Fantastic Submarine | 7.7 | 81 |
| 5 | Marie's Island | 7.6 | 76 |
| 6 | Infiltration of the Secret Base | 7.7 | 74 |
| 7 | The Tower of Babel | 7.8 | 71 |
| 8 | Mission to Rescue Nadia | 7.9 | 76 |
| 9 | Nemo's Secret | 7.3 | 72 |
| 10 | A Crowning Performance by the Gratan | 7.8 | 75 |
| 11 | New Recruits for the Nautilus | 7.3 | 70 |
| 12 | Grandis and Her First Love | 7.3 | 68 |
| 13 | Run, Marie! Run! | 7.1 | 69 |
| 14 | The Valley of Dinicthys | 7.4 | 69 |
| 15 | The Nautilus Faces Its Biggest Crisis | 8.0 | 71 |
| 16 | The Mystery of the Lost Continent | 8.0 | 74 |
| 17 | Jean's New Invention | 7.3 | 70 |
| 18 | Nautilus vs. Nautilus | 7.5 | 72 |
| 19 | Nemo's Best Friend | 7.6 | 68 |
| 20 | Jean Makes a Mistake | 7.3 | 67 |
| 21 | Farewell Nautilus | 8.2 | 73 |
| 22 | Electra the Traitor | 8.4 | 77 |
| 23 | Young Drifters | 6.8 | 64 |
| 24 | Lincoln Island | 6.6 | 64 |
| 25 | The First Kiss | 6.4 | 63 |
| 26 | King, the Lonely Lion | 6.1 | 62 |
| 27 | The Island of the Witch | 6.1 | 62 |
| 28 | The Floating Island | 6.2 | 61 |
| 29 | King vs. King | 6.0 | 61 |
| 30 | Labyrinth in the Earth | 6.8 | 65 |
| 31 | Farewell, Red Noah | 7.4 | 64 |
| 32 | Nadia's Love...? | 5.5 | 64 |
| 33 | King's Rescue | 5.2 | 67 |
| 34 | My Darling Nadia | 5.0 | 70 |
| 35 | The Secret of Blue Water | 7.8 | 70 |
| 36 | The New Nautilus | 8.0 | 67 |
| 37 | Emperor Neo | 7.9 | 67 |
| 38 | To the Sky | 8.1 | 69 |
| 39 | Successor to the Stars | 8.3 | 81 |