Season 1

As the Gundam Fight is about to begin, Domon Kasshu, the Gundam Fighter of Neo Japan, arrives on Earth after his Shining Gundam has unexpectedly veered off course and crashes in Rome.

As New York City is abuzz about Chibodee Crocket, the Gundam Fighter of Neo America, and his Gundam Maxter, Domon appears during a boxing match to challenge Chibodee to a Gundam Fight.

As Domon travels to Neo China, he is approached by two Shaolin monks who urge him to take on the Gundam Fighter of Neo China, who has apparently gone rogue.

In his eagerness, Domon interrupts a fight between Neo France's representative, George de Sand, and another opponent, but George, disgusted at this cavalier attitude, refuses to accept the challenge.

In Neo Russia, Domon has gone after the country's Gundam Fighter, but he is arrested by the local police and thrown into a large prison.

Domon returns to the Neo Japan space colony. There he undergoes a virtual reality simulation to determine if he is the right choice for Neo Japan's Gundam Fighter.

Domon goes to Neo Mexico in order to fight the Gundam Fighter, Chico Rodriguez, but upon arrival he learns that the fighter has run away and is being hunted by the local authorities.

Domon travels to Neo Canada to fight Andrew Graham and his Lumber Gundam, but Andrew refuses, and he is defeated unofficially, as no official match takes place.

Domon tries to defeat Neo England's Gentle Chapman who has won his fights through the use of unfair tactics.

Domon and Rain travel to Neo Egypt in order to face off against the Pharaoh Gundam XIII there. Upon arriving, they find out the Gundam and its crew have been destroyed by a "ghost".

In Neo Turkey Rain runs into an old friend, Saette Gyuzelle, from school. It is revealed that he is the Neo Turkey Gundam Fighter and he has been taken over by DG cells.

Reports of the Devil Gundam surfacing in Shinjuku send Domon and Rain to Neo Japan. They run into an army of Death Army mobile suits controlled by the Devil Gundam and Domon tries to call his Shining Gundam.

Domon and Master Asia set out to search for survivors. Master leaves Domon alone and Domon is attacked by Chibodee Crocket, Argo Gulskii, Sai Saichi, and George de Sand.

Rain notices that there are four unidentified objects heading for Earth. She also notices that Master is going into an abandoned subway station. She follows him and loses him.

A Death Army soldier comes to tell Domon that he is to meet with Master Asia alone at the Tokyo Tower. Domon goes, but along the way is stopped by his four friends.

An earthquake shakes Shinjuku, and all the members of the Shuffle Alliance along with their crews are trapped underground. Rain stumbles upon the Devil Gundam, which is absorbing its Death Army mobile suits.

Master Asia uses his knowledge of Domon and his reactions in order to lure Domon away from Shinjuku. While chasing what appears to be the Master Gundam, he is stopped by Schwarz Bruder, who tries to persuade him to stop chasing after Master Asia.

Chibodee's pit crew notice how strange Chibodee has been acting lately, so they run off to the Guyana Highlands. Chibodee chases them, and in the process he finds Domon and begins to train with him.

Domon and Rain are still training the Guyana Highlands. Rain is fixing the Shining Gundam while Domon continues his training.

Practicing with his butler, George is haunted by a massacre that occurred in the Neo France colony a year before. He was fighting a fellow candidate for the 13th Gundam Fight, Jean-Pierre Mirabeau, when the king refused to acknowledge Mirabeau as the winner due to his unfair tactics.

With the finals only 3 days away, the four other members of the Shuffle Alliance wait for Domon to finish his training so they can leave for Neo Hong Kong, where the finals will take place.

Being attacked by several Gundam Heads the Shuffle Alliance and crew retreat. The Shuffle Alliance members decide to fight the Death Army in order to give Rain and Domon time to fix the Shining Gundam which was heavily damaged by Master Asia.

The other members of the Shuffle Alliance all escape the Guyana Highlands. Domon stays back to defeat Master Asia and the Devil Gundam.

The four members of the Shuffle Alliance reach Neo Hong Kong for the finals, however Domon is not there. Still trapped in the Guyana Highlands, he spots a Neo Japan capsule containing the God Gundam.

Domon arrives in Neo Hong Kong moments before the deadline. The opening ceremonies start and Domon and the others are surprised to learn that Master Asia is back in his Master Gundam.

The finals have started and Domon's first opponent is Zeus Gundam, the favorite to win the championship. Domon is restless, so he goes through Neo Hong Kong looking for a place to stay.

Domon is about to face off against Cobra Gundam of Neo India. The pilot of Cobra Gundam has no qualms about hurting Domon before the match.

Schwarz Bruder fights the Viking Gundam, easily defeating it. Domon's next opponent, Kyral Mekirel, is an assassin who has one all of his matches by default by killing his opponents before the matches.

Sai Saici's next opponent is the Mermaid Gundam. However he is distracted as he falls in love with the pilot's sister, Cecil.

Domon is set to face off against Allenby Beardsely, a female Gundam Fighter who defeated Argo in under a minute. He meets her in an arcade and fights her in a fighting simulator, ending in a tie after the machine breaks down.

Chibodee lost his mother to a group of terrorist clowns and since then has been afraid of them. When his next opponent is Jester Gundam who copies everyone's moves it looks like Chibodee will lose fairly quickly.

Michelo Chariot is Domon's next opponent. Michelo and other fighters Domon has faced off with in the past set some traps to hurt Domon and the other Shuffle Alliance members.

George's next opponent is Gentle Chapman. Like Michelo Chariot, Chapman is under the influence of Master Asia and the Devil Gundam.

Schwarz Bruder goes to the Neo Hong Kong government building and sees the Devil Gundam in there healing. He is noticed by Master Asia, and he flees. He spots Rain following him and carries her to safety.

Now that the Devil Gundam is back, Domon requests the help of the Shuffle Alliance. However, they all refuse because the only person they want to fight is Domon.

George and Domon are set to fight each other, but the King of Neo France says there is no need, so he locks up Gundam Rose. However, George's feelings are so strong he steals Gundam Rose and challenges Domon to a fight.

The day before he is to fight Domon, Sai Saici isn't at all worried about the match. However after reading his father's will he decides to win the Battle Royale to revive the Shaolin Temple which was one of his father's wishes.

Andrew Graham of Neo Canada is facing off against Argo. Argo goes into Hyper Mode and uses a new technique, the Gaia Crusher, to create mountains in the ring.

Domon goes looking for Allenby because she went missing. He yelled at Rain because she was supposed to look after Allenby. Fuun Saiki, Master Asia's horse, comes and delivers Domon to Master Asia.

Domon is set to fight against Schwarz to determine the overall winner of the individual matches. Prime Minister Wong has the ring rigged with 5,000 time bombs set to explode after 8 minutes just in case there is no winner determined by that time.

Domon has Rain go scope out the situation with Schwarz/Kyoji while he goes to the Battle Royale. Rain sneaks in as a doctor and discovers that Schwarz is an android made up of DG cells. Rain's father also finds out since he's an expert in cybernetics.

With the help of Sai Saici and Argo, Domon defeats Michelo and heads for the next Heavenly King, Grand Gundam. Meanwhile at the hospital it is revealed the Devil Gundam was intended to restore the Earth.

After Chibodee and George have defeated the Grand Gundam, Allenby appears and seems to be under the influence of the DG cells and Domon tries to reason with her.

Rain manages to save Allenby by destroying the Walter Gundam. Schwarz and Kyoji sacrifice themselves so Domon can destroy the Devil Gundam's cockpit, defeating it.

The final fight begins. Domon and Master Asia fight an extraordinary battle, and Domon convinces Master Asia's plans would've failed anyway.

Domon burns the Master Gundam and Master Asia's body, proclaiming it to be the last time he will shed tears for Master Asia. The Devil Gundam needs a Core Life Unit that can produce life to function at its full potential.

Ulube now has the Devil Gundam at its full power, but though diabolical, he does not risk innocent lives, ordering an evacuation of the Neo Japan space colony.

Domon's father is now out of his cryogenic state and says that to beat the Devil Gundam Domon must destroy the colony's power source. Gundams from around the world gather to defend the Earth from the Devil Gundam.

Thanks to the Devil Gundam's self-recovery the Grand Master Gundam is resurrected and the Shuffle Alliance struggle to defeat it. The Devil Gundam Colony begins extending towards Earth, taking over most of it.