MAT receives word of a monster sighting, so they disembark aboard the Arrows to fight it. Goh's ship is taken down by the four-legged, horned monster and immediately engages in battle with it as U-Jack. Proving to be a formidable opponent, Ultraman ultimately loses the fight. His color timer expires and he disappears. As a result, Goh ends up in the hospital with numerous injuries. While Goh is out of commission, the other MAT members believe the beast thrives on atomic power. Goh's friend Sakata helps him train to strengthen his injured leg so that he can have a return match with the monster, Kingsaurus III.
