Skydon is a monster from space that landed on Earth in a meteor. Landing in a small construction site, a grumpy Skydon immediately attacked and set the site on fire with his flames. The Science Patrol was quick on assault, but their weapons were uselessly shrugged off by Skydon with ease. With the site on fire, Skydon soon went to sleep.

With their first assault a botch, the Science Patrol went through a series of tactics to get rid of the monster.

all of which failed comedically. During their first failed effort to get rid of the monster, Hayata narrowed avoided crashing and transformed into Ultraman to battle the beast, however much like the Science Patrol's follow-up of plans, Skydon easily shrugged off his assaults and went back to sleep, leaving a moderately embarrassed Ultraman to retreat once his Color Timer began to blink. Finally after a series of failures, the Science Patrol decided to fill the monster with hydrogen, inflating Skydon like a balloon, which miraculously succeeded.