Dr. Oki , the genius scientist who designed a new type of submarine is missing. His son, Susumu, smells an evil scheme of unknown group. He knows everything of his father's submarine called "Super 99" – equipment, weapons, functions and capacity. Susumu thinks that to find his father is to reveal the secret organization, Helmet Party, and stop their conspiracy. With the help of his friends and Marine Corps, he sets out to an underwater quest, not knowing how dangerous his endeavour is…
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | A Deep Sea Explorer Disappeared! | 2003-05-08 | 30 min |
| Season 1 | Episode 2 | Scramble, the Super Submarine! | 30 min | |
| Season 1 | Episode 3 | Battle at 39600 Feet Deep! | 30 min | |
| Season 1 | Episode 4 | The Ambush Achieved Great Success! | 30 min | |
| Season 1 | Episode 5 | Challenge of a Young Warrior | 30 min | |
| Season 1 | Episode 6 | Hold-Up | 30 min | |
| Season 1 | Episode 7 | A Booby Trap! | 30 min | |
| Season 1 | Episode 8 | Coronation of Emperor is Declared! | 30 min | |
| Season 1 | Episode 9 | Decision of a Great General | 30 min | |
| Season 1 | Episode 10 | Blast the Ocean Empire! | 30 min | |
| Season 1 | Episode 11 | Farewell, the Great General! | 30 min | |
| Season 1 | Episode 12 | Decisive Battle | 30 min | |
| Season 1 | Episode 13 | Embark to a New Ocean! | 30 min |
| Directing | Hiromichi Matano | Director |
| Visual Effects | Ikuo Shimazu | Character Designer |