Mosura
An expedition to an irradiated island brings civilization in contact with a primitive native culture. When one sensationalist entrepreneur tries to exploit the islanders, their ancient deity arises in retaliation.
In waters off Infant Island, a presumed uninhabited site for Rolisican atomic tests, the Daini-Gen'you-Maru is caught and run aground in the turbulence of a typhoon. A rescue party following the storm finds four sailors alive and strangely unafflicted with radiation sickness, which they attribute to the juice provided them by island natives. The story is broken by tenacious reporter Zenichiro (also known as "Bulldog" or "Zen-chan") Fukuda (Sakai) and photographer Michi Hanamura (Kagawa), who infiltrate the hospital examining the survivors.
The Rolisican Embassy responds by co-sponsoring a joint Japanese–Rolisican scientific expediction to Infant Island, led by capitalist Clark Nelson (Ito). Also on the expedition are radiation specialist Dr. Harada (Ken Uehara), linguist/anthropologist Shin'ichi Chūjō (Koizumi), and stowaway reporter Fukuda. Chūjō has studied the cultures of islands in the area and ascertained that one of the key hieroglyphs in their written language, a radiant cross-shaped star, translates as Mothra. There the team discover a vast jungle of mutated flora, a fleeting native tribe, and two young women only twelve inches tall (Emi and Yumi Itō), who save Chujo from being eaten by a vampire plant. The "Shobijin" (small beauties), as Fukuda dubs them, wish their island to be spared further atomic testing. Acknowledging this message, the team returns and conceals these events from the public.
Nelson, however, returns to the island with a crew of henchmen and abducts the girls, gunning down several natives who try to save them. While Nelson profits off a "Secret Fairies Show" in Tokyo featuring the girls singing, both they and the island natives beseech their god Mothra, a giant egg, for help. Fukuda, Hanamura, and Chūjō communicate with the young women via telepathy; they express conviction that Mothra will come to their aid and warn that "good people are sure to be hurt". Meanwhile, Fukuda's newspaper has accused Nelson of holding the girls against their will; Nelson denies the charge and files a libel suit against the paper. Meanwhile, the island egg hatches to reveal a gigantic caterpillar, which begins swimming the Pacific Ocean toward Japan. The caterpillar destroys a cruise ship and survives a napalm attack on a beeline path for Tokyo. The Rolisican Embassy, however, defends Nelson's property rights over the girls, ignoring any connection to the monster.
Mothra finally arrives on the Japanese mainland, impervious to the barrage of weaponry directed at it, ultimately building a cocoon in the ruins of Tokyo Tower. Public feeling turns against Nelson, and he is ordered to release the girls. He flees incognito to Rolisica, where Mothra, newly hatched in an imago form, immediately resumes her search. Police scour New Kirk City for Nelson as Mothra lays waste to the metropolis. Ultimately, Nelson is killed in a shootout with police, and the girls are assigned to Chūjō's care. Church bells begin to ring, and sunlight illuminates the cross atop the steeple with radiant beams, reminding Chūjō and Hanamura of Mothra's unique symbol and of the girls' voices. Chūjō hits upon a novel way to attract Mothra to an airport runway. The girls are returned amid salutations of "sayōnara", and Mothra flies back to Infant Island.
fantasy