Gaia and Aguru fight to the death for the first time, and Xuanyuan Long, a doctor of meteorology, is accidentally involved. When he was about to die, the consciousness of the earth's sky awakened, giving him the particles of the sky to transform into Ultraman Etel. After forcibly intervening in the two Austrian battlefields, he was transferred back to XIG due to an accident at an air monitoring station. GUARD's top brass secretly launched the "Sky Surveillance Project" in an attempt to control Ultraman's power.
