Jinrui no kibōdearu kaosu hakai kōso ga tsuini kansei shi, saishū kessen ga semaru. Musashi wa Hiura ni kabushige shotō iki o mōshikonda. Kaosu uirusu no eikyō de shima no kankyō seitaikei ga henka shi, chikyū sae mo rekka shite ita. Ningen ni wa chikyū no sakebi ga kikoeru yōda. Kaosu hakai misairu mo kansei shi, yūsuerītochīmu wa kaosuurutoraman o obikidasu tame urutora shingō o hasshin suru koto ni suruga, omoigakezu, kono kōdō ga chichū ni nemuru kaijū doruba o mezame sasete shimau.
The Chaos Destruction Enzyme, the hope of mankind, is finally completed, and the final battle is imminent. Musashi applied to Hiura to go to the Kabushige Islands. Due to the influence of the Chaos Virus, the environmental ecosystem of the island has changed, and even the earth has deteriorated. Humans seem to be able to hear the earth's cry. The Chaos Destruction Missile is completed, and the Youth Elite Team decides to send out the Ultra Signal to lure out Chaos Ultraman, but unexpectedly, this action awakens the monster Dorba sleeping underground.