Episode 1 — Girl at the Eiffel Tower Episode 2 — The Little Fugitive Episode 3 — The Riddle of the Giant Sea Monsters Episode 4 — Nautilus, The Fantastic Submarine Episode 5 — Marie's Island Episode 6 — Infiltration of the Secret Base Episode 7 — The Tower of Babel Episode 8 — Mission to Rescue Nadia Episode 9 — Nemo's Secret Episode 10 — A Crowning Performance by the Gratan Episode 11 — New Recruits for the Nautilus Episode 12 — Grandis and Her First Love Episode 13 — Run, Marie, Run! Episode 14 — The Valley of Dinicthys Episode 15 — The Nautilus Faces Its Biggest Crisis Episode 16 — The Mystery of the Lost Continent Episode 17 — Jean's New Invention Episode 18 — Nautilus vs. Nautilus Episode 19 — Nemo's Best Friend Episode 20 — Jean Makes a Mistake Episode 21 — Farewell Nautilus Episode 22 — Electra the Traitor Episode 23 — Young Drifters Episode 24 — Lincoln Island Episode 25 — The First Kiss Episode 26 — King, the Lonely Lion Episode 27 — The Island of the Witch Episode 28 — The Floating Island Episode 29 — King vs. King Episode 30 — Labyrinth in the Earth Episode 31 — Farewell, Red Noah Episode 32 — Nadia's Love Episode 33 — King's Rescue Episode 34 — My Darling Nadia Episode 35 — The Secret of Blue Water Episode 36 — The New Nautilus Episode 37 — Emperor Neo Episode 38 — To the Sky Episode 39 — Successor to the Stars