Journalists Ichiro Sakai and Junko cover the wreckage of a typhoon when an enormous egg is found and claimed by greedy entrepreneurs. Mothra’s fairies arrive and are aided by the…

Shipwreck survivors are found on Infant Island, which was presumed uninhabited due to Rolisican atomic tests. Investigating the case is reporter Zenichiro "Snapping Turtle" Fukuda and his photographer Michi. The…

Reporter Naoko is interviewing members of a UFO club when a large meteor lands in Kurobe Valley. Meanwhile, her detective brother Shindo is assigned to protect the foreign Princess Salno,…