Hayata, a member of SSSP, collided with a red sphere in the sky above Ryugamori and crashed while pursuing a mysterious blue sphere. In the sphere there was Ultraman from Nebula M78. Ultraman, who involuntary caused a serious injury to Hayata, shared his life with him and pledges to fight together to protect the earth.
One night, an object emitting intense radio waves flew and suddenly disappeared near the science center at Gotenyama. Arashi, a members of SSSP headed there for the investigation, but his movement was sealed by the beam of Alien Baltan which had already occupied the science center. Moramatsu got to know the alien 's visit, and suggested "talking" with them.
To investigate the creepy sounds coming from an old well, Akiko Fuji and Hoshino visited Izu. At the same time, a hydropower station and a transmission station near a well got attacked by someone. The true identity of an invisible assailant was Transparent Monster Neronga. Where will the next site Nelonga hit to eat electricity?
Ultraman: S1 E4 - Five Seconds Before The Explosion
Fuji, who got her first vacation since joining to SSSP, have left for Shonan. However, there appeared Undersea Primitive Human Ragon. It was huge due to the effect of radiation activity of the Jovian development atomic bomb exploded on the Pacific Ocean. And what is worse, it was hanging the atomic bomb whose safety equipment had been dropped off. SSSP makes Ragon listen to the music to let it calm down.
A strange incident occurred, that the members of Oilys Island Investigation Team suffocated to death. Professor Yamada, one of the victims of this incident, irradiated the plant "Miroganda" brought back from the island, and this action caused it to become Green Monse. And this Green Monse was attacking the people who drank the water of Oiris Island! The only surviving woman of the investigation team is in danger!
In the warehouse of cocoa beans at Yokohama port, Hoshino and his friends got caught by "Diamond-Kick ", a wanted jewel smugglers. At just about the same time, Guesra, which mutated into a monster by drinking sewage at Tokyo port appears at Yokohama Port in search of cocoa beans, and approaches the warehouse. Will Ultraman make it in time!?
Meteorites dropped one after another to the desert in the Middle East. Each country dispatched a specialist team to the site for investigation, but all of them disappeared on the way for some reasons. What on earth is going on? Our SSSP Japan branch is finally going to the site, too, for the investigation. However, Jet VTOL was hit by rainbow-colored magnetic beam when it was flying near the desert. A series of incidents was triggered by Antlar!
Fixed-point observation is to be restarted in Tatara Island, which has become a deserted island due to the volcanic activity. However, the contact with the observers was lost, and SSSP headed to the island for investigation, and what they encountered there was a group of monsters wander around the island. SSSP was struggling to search for survivors, but then Friendly Monster Pigmon appears and.
Typhoon No. 13 brought enormous damage to various areas in Japan. Restoration work continued here in Unari Town, but Gabora emerged there. The town would get ruined if this monster rages in the town. SSSP tries to keep Gabora away from the town using Gabora's favorite uranium capsule, but the rage of Gabora never stops.
The fish were breeding abnormally at Kitayama lake, and SSSP headed there to to find out the cause of it. Apparently, it seems those fish eat foods that huge creatures have left behind and increase the number. And it found out that the identity of the gigantic creature was a dinosaur Jirahs that professor Nikaido brought back from Loch Ness 15 years ago. Because an environment around Kitayama lake was very similar to Loch Ness, and Jirahs was growing steadily.