Destroy Earthquake Epicenter X

is the twentieth episode of Ultraseven.
==Synopsis==
Dan and Soga visited Professor Iwamura, who is known as a stubborn old man, at International Nuclear Research Center, to request for corporation for the frequent earthquakes hitting the Aosawa mountainous area, but got turned away at the door. 
Shortly after, UG met a college girl who was engaged in a mountain rally and finds out she carried substance called "Ultonium", a nuclear that form Earth. This stunned Dr. Iwamura and he started to fear that Earth may collapse.
==Cast==
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===Guest Actors===
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===Suit Actors===
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==Appearances==
===Ultras===
*Ultraseven
===Kaiju===
*Giradorus
*Alien Shaplay
==Home Media==
*Ultraseven Volume 5 features episodes 18-21.
413C7RASA1L._SY300_.jpg|1999 release
Item1_(4).jpg|2009 version
==Trivia==
*In the final draft, the title was changed to "". However, due to the story setting being shifted to a land-based battle, the title was revised.https://twitter.com/kazz_asai/status/965592682050371584
**In the preparation draft, Alien Shaplay collapsed a city with a population of 47,000 and took its residents hostage, planning for migration to Earth. The climax of the story was originally planned to be the battle between Giradorus and Ultraseven in a massive underground cave.https://twitter.com/sandae2356/status/1651706773345271808
==References==
Category:Ultraseven Episodes
Category:Episodes
Category:Ultraseven