A Crowning Performance by the Gratan 1 Season 10 Episode

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