Cast:
Tadao Takashima: Commercial Photographer Susumu Hatanaka
Yôko Fujiyama: Makoto Jinguji, the Captain's Daughter
Yu Fujiki: Yoshito Nishibe
Ken Uehara: Retired Admiral Kosumi
Jun Tazaki: Captain Hachiro Jinguji
Kenji Sahara: Journalist / Mu Agent
Hiroshi Koizumi: Detective
Yoshifumi Tajima: Tome 'Amano' Amanoshome
Akihiko Hirata: Mu Agent #23
Eisei Amamoto: High Priest of Mu
Tetsuko Kobayashi: Empress of Mu
Plot / Synopsis
The Earth shakes violently. The tremors are caused by the undersea Mu Empire, a belligerent dominion seeking to reclaim their rule above sea level. The Muans are aided and protected in their crusade by their God Manda, a gigantic sea serpent dragon.
But all hopes rest on Captain Jinguji (Jun Tazaki) and his super submarine Atragon to stop the Muans - yet the captain has no interest in committing his submarine to battle against the Mu Empire. That is, until the Muans kidnap his daughter. Now the Atragon, equipped with a high-powered freeze ray and the capability of flight, must face the apocalyptic weapons of the Mu Empire to save humanity!
