Young race car driver Hideki Go dies saving a child and dog during a giant monster attack, a returning Ultraman impressed by this bravery merges with him to become the new Ultraman.
Due to his overconfidence, stemming from being the new Ultraman, Hideki Go disobeys orders that result in his partner being injured and the monster getting away.
Young Jiro Sakata accidentally captures the image of a monster on his camera, a picture that most of the MAT team disbelieve, but it eventually leads to the revelation of a chameleon-like creature roaming the hills.
When Go Hideki accidentally activates the timer on the new X-Bomb, while attacking the latest monster, there is now the danger that the creature could explode while in a populated area.
The MAT team must tackle a monster that apparently breathes a poisonous yellow gas, one that is revealed to have once been a weapon developed for the Japanese army during WWII.
An attacked biker gang, a destroyed bypass and a mysterious girl living alone in the woods all add up to a monstrous mystery for the members of MAT to solve.
When a freighter is sunk the daughter of the captain tries to prove her father's claim that the ship was destroyed by a legendary creature called Seamons.
A female monster tries to lay its eggs while its equally monstrous mate unleashes the fury of "The Heavens and the Earth" in the form of tsunamis and tornadoes to protect her.
As if a fickle blind woman and her mad bomber ex-lover weren't enough of a problem the terrifying Terochilus has made its toxic nest in the heart of downtown Tokyo.
An incredibly powerful space monster threatens the Earth, one so powerful that even Ultraman seems powerless against it, but with the aid of Ultraseven mankind may just have a chance.
While waiting for a new captain to arrive the MAT team members must face off against a plastic eating monster that erupts from beneath a local landfill.
Go's life is complicated when the kick-boxer he is helping turns out to be in love with Go's girlfriend, not to mention there being a giant saw-bladed monster to fight as Ultraman.
Disappearing and re-appearing typhoons have the MAT members chasing their tails, that is until a monstrous jellyfish creature turns out to responsible.
An alien disguised as a child telepathically informs Go that he has come to Earth to kill Ultraman, needless to say when Go tries to strangle the child things do not go well.
When a series of inexplicable traffic accidents bring MAT members to investigate they encounter a being whose ability to bend light and solar rays causes much confusion and destruction.
The MAT team members force their captain to take a well-deserved vacation but this only opens him and his family up to being targeted by nefarious alien.
A truant boy comes across a small space capsule with a tiny creature inside, unfortunately, this alien carries a very bizarre pathogen that could lead to the Earth's destruction.
The investigation of an apparent suicide by a world-renowned scientist leads to another plot to discredit a member of MAT, one that could result in the organization being disbanded.
