Bōei-gun to kyōryoku shi, uchū zahyō-ten P 87 de no kaosuuirusu senmetsu sensō ga hajimatta ga, kaosuuirusu wa bōgai o tsudzuke, EYES kichi mo kaosuuirusu ni habama rete shimau. Musashi wa Gausu ni henshin shi, EYES kichi o hōi suru kaosuuirusu ni idomu. Gausu to kaosu kyōka Urutoraman wa getsumen ni oritachi, hageshī tatakai o hajimeru. Yoshii ga suishō no moji o kaidoku shi, kaosuuirusu wa konton to shita sekai chitsujo o tōitsu suru tame ni tsukura reta jinkō seimei-taidearu koto ga hanmei shita.
In cooperation with the Defense Force, the Chaos Virus annihilation war at the cosmic coordinate point P87 began, but the Chaos Virus kept interfering, so that the EYES base was also blocked by it. Musashi transformed into Gauss and challenged the Chaos Virus surrounding the EYES base. Gauss and Chaos Enhanced Ultraman landed on the moon and started a fierce battle. Yoshii deciphered the words on the crystal, and it turned out that the Chaos Virus was an artificial life form created to unify the chaotic world order.
