The episode that started it all! This episode shows how Ultraman came to Earth, and during his chase with the fugitive monster Bemular, a tragic accident that befell Science Patrol member Hayata forces the alien to save the Earthling's life by merging with him. Thus, unbeknownst to anyone (even his Science Patrol teammates), Hayata and Ultraman are now one and the same! The course of the episode has Hayata and his teammates coping with the terrifying Bemular.

The Science Patrol goes back into action when an invisible UFO anchors itself over the Scientific Technical Center in Tokyo. The UFO's inhabitants are the clawed insect-like aliens from the planet Baltan! Able to divide into multiple copies, as well as possess certain human hosts, the Baltans plot to take over the Earth and enslave all humanity . . . until Ultraman comes to the rescue!

Meanwhile, Science Patrol member Ide tells us why he got a black eye in the beginning of the episode!

Beneath a well in Mount Iwami lies a dormant monster called Neronga, which was defeated by the samurai Ichiemon Murai in the Edo Period. Recently reawakened by the construction of a new power plant in Mount Iwami, only its roars are heard, and a wake of destruction is left all over the power plant. The Science Patrol suspects that Neronga is invisible, but when the monster attacks again, they find that it becomes visible when it absorbs electricity! The Science Patrol and the Self-Defense Forces' Mobile Super-Ray Corps prepare to guard another power plant, which is Neronga's next target. Can they succeed before disaster strikes? Will Ultraman arrive to fight the invisible menace?

When a rocket with six nuclear bombs was sent into outer space for development of the planet Jupiter, the rocket malfunctions and lands into the sea, with only one of the bombs exploding, causing a disaster at sea. With four of the bombs recovered, it's up to the Science Patrol to find the missing bomb. Meanwhile, Fuji is given a vacation by Capt. Muramatsu (much to Ide's jealousy), and she, Hoshino and a little girl named Michiko go to the seaside Mamiyama Hotel and have fun. Meanwhile, Hayata investigates a boat disaster caused by a moving wake in the sea, caused by the giant humanoid sea monster Ragon. This is not the gentle beast as seen in Ultra Q, this Ragon, mutated by the radiation of the aforementioned exploded bomb, is hostile and violent. Not only is it heading towards the Mamiyama Hotel, but the missing bomb is dangling from its body!!! Will Fuji and the two children be safe? Can Ultraman fight Ragon without detonating the atomic bomb?

A group of scientists and reporters have went on an expedition to Oilis Island, and find a rare Miloganda plant, but were almost attacked by a huge green plantlike monster (known as Greenmons), which they shoot to death. But one month after their return to Japan (with the Miloganda plant at a greenhouse lab), the very same Greenmons murders all of the expedition members, except one: Photographer Setsuko Hamaguchi, who the Science Patrol suspect will be the monster's next target and place her under protective custody. They also find that radioactive energy (even their Superguns and Arashi's Spider Shot gun) can make the monster stronger . . . and grow! What is the connection between the Miloganda plant and Greenmons? Will Ultraman stop the green terror from causing any more destruction?

While playing with his friends on the docks of Yokohama Bay, Hoshino witnesses a strange-looking giant monster rise from the sea, the monster Gesula! It originated from Brazil, and is in search of its favorite food, cacao beans. However, Hoshino and his friends have been kidnapped by the notorious jewel smuggler Diamond Kick and his gang, who hide out in a warehouse. To complicate matters, not only is there a huge shipment of cacao beans inside the warehouse, but one of the shipments contains the diamonds that Diamond Kick and his gang were searching for, with Gesura quickly drawing near! Will the Science Patrol, and Ultraman, save the children, catch Diamond Kick and his gang, and stop Gesura?

The Science Patrol investigates a series of plane crashes in the Middle East, where they encounter a vicious insect-monster that brings Ultraman to his knees. This time, it's up to the Science Patrol to try and turn the tables.

Contact has been lost with a meteorological station on a distant Pacific island. When the Science Patrol investigates, they encounter a lone survivor, carnivorous plants, giant monsters, and a diminutive friendly creature! Can it help them make their way off the island in one piece?

When a uranium-eating monster disrupts efforts to rebuild a village after a tropical storm, the Science Patrol intervenes. However, the only succeed in diverting the angry creature's path of distruction. It's up to Ultraman to prevent further casualties!

A dinosaur-like monster emerges from the depths of Lake Kitayama. The Science Patrol uncovers a mysterious connection between it and the legend of Loch Ness. When they find the creature too powerful to subdue by normal means, Ultraman steps in to take it down once and for all.

A seven thousand year old mummy is awakened by scientific experiments and it goes on a rampage. When finally cornered, it summons an enormous, four-legged dragon so powerful that only Ultraman stands a chance of defeating it.

An enormous starfish monster that feeds on petroleum products is preying upon oil tankers in Tokyo Bay. Before long, it sets its sights on bigger game: a massive oil storage facility in the port. Only the Science Patrol and Ultraman have the power to stop it before Japan's energy supplies are cut off!

A strange creature with the face of a frog and the body of a whale is attacking pearl farms on the Japanese coastline. When napalm bombs and electrical nets fail to stop the rampage, Ultraman comes to the rescue!

An unusual form of space radiation turns a child's chalk sketch into a real-life giant monster that's all but impervious to the Science Patrol's attacks. As the creature mutates, only Ultraman has the power to stop it.

When a manned spacecraft bound for Venus is hijacked by aliens, the Science Patrol outfits the Jet VTOL for interstellar travel. When it becomes clear that the incident is a springboard for Baltan's alien race to invade the Earth, Ultraman goes on the defense.

A pair of unusual meteors discovered by an American explorer fuse together after being exposed to a special beam. They mutate into a bizarre fourth-dimensional monster capable of warping reality as we know it. Can Ultraman overcome this psychedelic menace in time to save the day?

A mysterious radioactive fog settles over Tokyo. An even more mysterious alien arrives to clean it up. But can this good samaritan really be trusted? And what is his connection to the evil doppelganger of Ultraman that's terrorizing the city?

A pair of ancient capsules unearthed at a construction site unleash a pair of monsters who are mortal enemies sealed away a long time ago by the ancestors of mankind. Can Ultraman stop them before their blood feud reduces Tokyo to rubble?

An enormous bird-monster is attacking motorists on Route 87. The Science Patrol discovers a supernatural link between the monster and a statue located nearby. Once they realize the connection, it's up to Ultraman to put a stop to this terror once and for all.

Strange things are happening around a dead volcano including reports of dead birds and a giant smoking bellowing monster. The Science Patrol is asked to investigate. Seeing no danger, Mura sends Fuji to investigate the monster sighting.

Hoshino stows away in the airplane and confirms the sighting. Both Mura and Hoshino are trapped by the monster Kemurah who starts a rampage in a nearby city.

The Science Patrol expects a visitor from the Paris branch of the Science Patrol. Ido begins to suspect that there is something strange about her. Things get worse when Ido's theory becomes fact as Hayata becomes a prisoner of the fake agent. A massive monster starts to lay waste to the city and no Hayata means no Ultrman. Can Hayata escape the underground blind terrorists and stop the fire breathing Telesudon?

The Science Patrol is asked to investigate Strange accidents have been haunting the international space exploration agency. They soon learn that all the attacks are linked to Jamila, a Japanese astronaut lost in space years ago.

Now Jamila is back, mutated into a giant massive monster who wants revenge on the human race. Ido thinks that deep down there is something left of Jamila inside that is still human. Can Jamila be reached or will the planet be doomed?

The opening of the Science Patrol's new undersea science base is marred by tragedy, as a mutant Narwhal damages the base and air is now on short supply. Hayata and the others must make a daring rescue to save the people trapped on the base while avoiding the monster's deadly attacks.

When a comet comes dangerously close to the Earth, the heat may have caused an unexploded nuclear warhead to detonate. When they come up empty in the search they assume a monster has swallowed it. They end up facing off against 3 monsters, but it's the new Red King that has the bomb stuck in his throat and stopping this mega Royal Rumble may not be so easy.

The discovery of a new kind of dinosaur leads the Science Patrol to capture the beast. However, when it awakens sooner then expected a crash causes the creature to act violent. Furthermore, a little boy obsessed with monsters goes looking for the massive monster to see a real live monster in person and fins the Beta Capsule.

With Gomorrah still on the rampage, both the army and the Science Patrol are no match for this million year old menace from the lost island. To make a bad situation worse, Hayata has lost the Beta Capsule which is now in the hands of the small boy who loves monsters.

A mysterious bus crash leaves Ito in the hospital with two broken ankles. Commander Ito decides to follow a mysterious woman who seemed to be unharmed by the crash and unconcerned for the other travelers on the bus. He soon learns that a strange alien named Dada is stealing scientists in a nearby research center.

After a gold creature causes a cave-in which traps a miner, the team must travel deep underground in an experimental Mole device that Ito invented. However, soon the rescuers need rescuing when they confront the monster Goldon.

A hunter claims to have been attacked by a towering, Yeti-like creature in the mountains. When the Science Patrol's investigation is impeded by a mysterious local girl named Uki, they begin unraveling her surprising connection to the giant monster.

When an agent visiting Japan from the Science Patrol's South American headquarters begins behaving suspiciously, the Science Patrol discovers that he has been infected by an Amazonian blood-sucking creature intent on spreading its evil tendrils throughout the entire world.

The Science Patrol discovers that the culprit behind a baffling series of volcanoes, earthquakes and other natural disasters is actually a giant monster. When it heads towards Tokyo, only Ultraman can stop it.

Hayata and the other Science Patrol members are trapped by the malevolent alien invader Mefilas, who proceeds to briefly turn Fuji into a giant monster herself before resurrecting doppelgangers of Ultraman's previous enemies Baltan Alien, the Kemurian, and Zarab Alien.

When the Science Patrol investigates a strange meteor fallen to Earth, they realize it's actually a super-heavy giant monster that proves impervious to their attacks. After trying a variety of techniques to subdue the creature without success, it's up to Ultraman to step in and save the day.

When a moon rocket accidentally penetrates a "monster graveyard" in space, it returns to earth with an unexpected visitor: a glum skeletal monster who wants nothing more than returning to its original resting place in the stars.

A monster with the power to emit blinding flashes of light is terrorizing Japan. The Science Patrol's attempts to subdue it only cause it to mutate into a new form. The orders come to halt the attack, but the creature continues its rampage… Until Ultraman steps in to stop it.

When Pigmon, the cute human-sized monster thought to have been killed in Episode 8, inexplicably re-appears in the toy section of a department store, the Science Patrol learns that a giant creature with the ability to resurrect monsters has appeared in Japan.

The Science Patrol takes to the stars and learns that a missing piece of equipment could cause Space Station V2 to explode. After determining that the closest replacement is on a nearby planet, the Science Patrol makes a beeline for it...only to encounter a pair of ferocious monsters in their path.

In this final episode of the Ultraman television series, a fiendish alien race, the Z-Ton Aliens, plots to conquer Earth. While plotting to cripple the Science Patrol Headquarters, they dispatch their giant insect-like monster, Z-Ton, to destroy it from the outside. After the Science Patrol destroy the Z-Ton fleet, Ultraman intervenes, but the monster proves to be more than a match for him! Will Ultraman, or the Science Patrol, be able to destroy Z-Ton? If Ultraman fails, what will happen next . . .