The Galman Empire is destroyed but the planet Galmania is not, by a chance collision of galaxies. The Bolar Federation worlds including Planet Bolar are destroyed. The Yamato, back under the command of Captain Okita, encounters the planet Denguil too late to save its humanoid civilization from being flooded by the water planet Aquarius. The surviving Denguil, a warrior race who believe only the strong should survive, plan to use Aquarius to flood Earth and destroy humanity, in order to create a new home for their race.
| Directing | Tomoharu Katsumata | Director |
| Directing | Yoshinobu Nishizaki | Director |
| Directing | Takeshi Shirato | Director |
| Directing | Toshio Masuda | Director |
| Writing | Kazuo Kasahara | Writer |
| Writing | Leiji Matsumoto | Story |
| Writing | Yoshinobu Nishizaki | Writer |
| Writing | Eimei Yamamoto | Writer |
| Production | Yoshinobu Nishizaki | Producer |
| Sound | Kentaro Haneda | Original Music Composer |
| Sound | Hiroshi Miyagawa | Original Music Composer |
| Editing | Yutaka Chikura | Editor |
| Art | Geki Katsumata | Art Direction |
| Camera | Masao Shimizu | Director of Photography |
| Visual Effects | Hajime Kamegaki | Key Animation |
| Visual Effects | Tsuneo Ninomiya | Animation |
| Visual Effects | Toshio Mori | Animation |
| Visual Effects | Masaya Onishi | Animation |
| Visual Effects | Masaharu Endo | Animation |
| Visual Effects | Katsuyoshi Nakatsuru | Animation |
| Visual Effects | Eisaku Inoue | Animation |
| Visual Effects | Kazuhiko Udagawa | Animation Director |
| Visual Effects | Koichi Tsunoda | Animation Director |
| Visual Effects | Yoshinori Kanada | Animation Director |
| Visual Effects | Shinya Takahashi | Animation Director |
| Directing | Leiji Matsumoto | Director |
| Writing | Leiji Matsumoto | Original Film Writer |
| Writing | Yoshinobu Nishizaki | Original Film Writer |
