立志当人类历史上第一位宇航员的丹•米尔顿•普雷斯科特(比尔•艾德华斯 Bill Edwards 饰)驾驶代号Y-12的宇宙飞船前往太空,在进入外太空的一刹那,他因为过于兴奋而忽略了总部的命令,最终导致飞船失控。飞船坠入大气层,与总部失去联系。不久,国防部的人找到飞船残骸,而惹出祸端的丹却在女友处潇洒快活。
丹的特立独行给国防部高层留下极深的印象,他们顶住各方压力,仍然决定派遣丹驾驶Y-13再次前往太空。当达到600’000尺的高度时,丹的老毛病再次复发。他不顾总部的命令,直线冲入外太空。结果飞船失控,受到宇宙粉尘袭击,最终爆炸。国防部找到飞船遗骸,却未见到丹的身影。随后不久,一个恐怖嗜血的生物开始在城市中出没……
Shipwreck survivors are found on Beiru Island (Infanto tô), 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.
In a dream Uncle Jack looks through a magic telescope owned by the ghost of a hermit and sees what life was like millions of years ago, including a battle between prehistoric monsters.
The main character is Dr. Max Holst, a successful neurosurgeon. One day an intense little man named Steinmetz shows up, who has the real ability to create objects out of thin air, using only his mind. As no one believes him at first, he is held at a ward for mental patients, but manifests the key to his door and escapes. As he has a special interest in Dr. Holst, Steinmetz subsequently invites Holst to his large mansion, which is full of expensive paintings and sculptures, and proves to him that he can in fact materialise objects. Steinmetz’s abilities are evolving by leaps and bounds, and is progressing from being able to create objects only to being able to create living things. His ultimate ambition is to be able to create a human being. He tells Dr. Holst that if he will only perform a certain brain operation on him, Steinmetz will become able to attain his goal. He’s got all the necessary equipment set up in his basement. Dr. Holst, however, is too spooked by the whole thing to agree to this mad scheme, and refuses. Steinmetz then sets about manipulating Holst’s life, to pressure him into performing the operation. By then Steinmetz has become able to create a temporary human being, and in the hope that he can perhaps make his own creation perform the operation, he manifests a doppelganger of Dr. Holst. This double proceeds to take over Dr. Holst’s life, creating chaos for him professionally and personally. And then Dr. Holst starts fighting back. The ending has the dual virtue of being both unexpected and satisfying.