
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.

as Susumu Kodai

as Yuki Mori

as Daisuke Shima

as Daisuke Shima

as Kenjiro Ota

as Yasuo Nanbu

as Analyzer

as Tasuke Tokugawa

as Sho Yamazaki

as Shiro Kato

as Lugal II

as Dingir Boy

as Dingir Officer A

as Queen of Aquarius

as Jiro Shima

as Narrator

as Juzo Okita

as Dr. Sakezo Sado

as Desler

as Heikuro Todo

as Shiro Sanada

as Lugal I (voice)

as Captain Mizutani (voice)

as EDF Senior Officer