60年代的日本人似乎對這個大黑猩猩情有獨鐘，在玩遍了各種哥斯拉的故事之后，依然將金剛的神奇遭遇不停地向人們展示、炫耀。光看他的故事就能讓人嚇一跳：科學家制造出了一個機械金剛，用來在北極挖掘神秘的X元素，與此同時邪惡的博士綁架了真正的金剛，令其干同樣的活，因此，機械金剛與原形之間的連番惡斗就在所難免了。

　　Shipwreck survivors are found on Beiru Island (Infanto t?), which was previously used for atomic tests. The interior is amazingly free of radiation effects, and they believe that they were protected by a special juice that was given to them by the island's residents. A joint expedition of Rolisican and Japanese scientists explores Beiru and discovers many curious things, including two women only one foot (30 centimeters) high. Unscrupulous expedition leader Clark Nelson abducts the women and puts them in a vaudeville show. But their sweet singing contains a telepathic cry for help to Mothra, a gigantic moth that is worshiped as a deity by the island people. The giant monster heeds the call of the women and heads to Tokyo, wreaking destruction in its path.

　　喬萬娜低調平凡，每天周旋于政府部門的會計工作、女兒的學?；顒?。在無趣的外表下，其實是一名執行各種國際危險任務的特務。某天高中同學聚會，發現所有同學都跟她一樣，每天都有鳥事跟煩惱。這讓她下定決心，接下來的任務要幫助身邊所愛的人。透過浮夸的偽裝、經歷爆笑的情況，她要扭轉人生，為朋友帶來正義！

　　Nearly murdered as a child by her mother, a woman (Katrina Law) returns to the house where her mom went mad.