Rebirth of Mothra II

Rebirth of Mothra II, released in Japan as Mothra 2: The Undersea Battle (モスラ2 海底の大決戦, Mosura Tsū Kaitei no Daikessen), is a 1997 Kaiju film, second in Toho's Mothra Trilogy, which began with Rebirth of Mothra in 1996. It was the last feature length tokusatsu/kaiju film in which Koichi Kawakita acted as director of special effects.

Plot

Off the coast of Japan, the environment has been ravaged with poisonous starfish-like creatures called Barem. Meanwhile, the Elias sisters, Moll and Lora, survey the destruction and enlist the help of three children, who had just discovered and befriended a strange little creature dubbed "Ghogo" to help find the mysterious treasure of Ninai Kanai, an ancient lost civilization, to save the Earth from the declining environment.

The Elias then tell the children that the people of Ninai Kanai created a monster called Dagahra as a method of pollution management gone awry and only Mothra Leo can stop it; however, he will need the help of the lost castle of Ninai Kanai itself and the mysterious treasure within. Belvera, the evil Elias sister, manipulates two fishermen and wants the treasure of her own. They all journey to the lost castle, hidden beneath the ocean waters and it magically rises out of the water after the travelers discover it.