When their planet is ruined by giant rebellious robots, an alien and her grandfather escape to Earth only to be hunted down by them. Luckily, Leo steps in to help.

Leo discovers the true intentions of "Astra" and must put an end to it.

The evil Alien Barabou disguises himself as Leo's younger brother to retrieve the Ultra Key, meaning the Land of Light and Earth will collide. When "Astra" arrives on Earth, he tells Leo that the Ultra brothers are after him. Will Leo see through his disguise? What will be the fate of the 2 planets?

An alien narrowly escapes death from a group of villagers with the help of a former sea captain. However, the tables turn when the aliens begin to attack the village and matters get even worse when they fuse onto a giant kaiju.

Dan sees a woman who he believes to be Anne. But the Uringa alien calls her "mother." What is the connection, and is she really Anne?

When Leo is out-matched by the kaiju, Alien Akumania, his brother returns to help him in battle again.

A beast under the guise of a Flying Saucer travels from a distant planet to attack Earth. MAC doesn't detect it, and gets all but destroyed.

After Gen is framed by Alien Vibe, he must discover it's secret to defeat it.

A mischievous alien falls out of his bed onto Earth where he befriends a group of kids. He shows off his monster, Renbolar, only for one of the kids to pull off his tail that was controlling it, causing it go on a rampage. Can Ultraman Leo stop it until it's master's tail grows back?

When Leo is shrunk down to a few inches by Pressure, Ultraman King, impressed by his fighting skills, arrives to assist him.

A skilled female gymnast has been acting strangely lately. What secret does the moon hold about her?

Ultraman Jack arrives on Earth to take Seven's Ultra Eye back to the Land of Light for repairs. However, an evil alien gets in his way and it's all-out melee. Leo and Jack fighting together and to top it all off, a new Capsule monster is introduced.

Kaoru Umeda is kidnapped by Specter under the disguise of her mum. When Gen tries to save Kaoru, she sends Alien Mazaras to Earth. He must defeat them both!

An astronaut, thought to be dead, comes back to Earth from the deadly Planet Atlanta. However, he is secretly an Alien Atlanta. Leo knows he must defeat it but the alien's lover would be devastated. Can he do it?

A new powerful saucer creature has been summoned to earth. Two brothers have an encounter with it, but the police refuse to believe a monster is behind their accident.

Leo is defeated by the monster, Antales, when a mysterious boy comes into to the dojo competition and knocks out everyone in it. Who is he?

When an alien with the ability to duplicate itself arrives in Tokyo, Gen trains to dodge it's multiple attacks.

While Leo is engaged in battle with 2 monster brothers, his long-lost brother, Astra arrives to assist him.

When a boy and his father pull out a gigantic needle that was stuck in a monster's foot, she repays them by working at their shop while the father's injured. While there, she makes special pinwheels out of her feathers. Unfortunately, these attract the vicious Alien Magma, the very alien that destroyed Leo's home planet, who is determined to kill Rolan after she refuses to marry him. This time, Leo can't let him get away!

Tooru mourns his losses and finds a teru teru bozu, unaware it is really Nova in disguise.

Bunyo has come to earth! He may not have strength, but he's smart, as Leo may soon find out..

The dreadful Alien Atler has come to earth, and Dan tells Gen he is no match for this enemy. She also has the power to wipe out entire planets...

A mysterious old man comes to Earth with poisonous flowers that put kids in comas. Can Leo stop his evil plans? Can he save the kids?

Gen meets a friend who he broke up with over selfishness. The newest saucer monster may bring their conflict to the centre stage again.

Leo is nearly overwhelmed by the Giras Brothers and Alien Magma, but is saved by Dan. The city is not so lucky.