The Rubber Robo Gang swoops down and bot-naps Metabee. He is weak so he can't fight back. They take Metabee to their secret hideout in a helicopter. Since the rest of the gang left Seaslug, Gillgirl, Squidguts and Shrimplips behind so Ikki coaxed out of them the location of the RRG hideout. Then Ikki and his friends go to Miyama Ruins where Metabee is hidden. There, members of the Rubber Robo Gang try to take Metabee's medal out of him. When Ikki and Koji get to the Miyama Ruins, they find outdated medaparts and Medals. The Ruins are filled with Death Traps and Booby Traps and they cause the group to separate. The RRG flees. While looking for Metabee and the rest of their friends, Ikki, Samantha, and Koji find 3 Medabots with out any Medafighters. Summilidon and Peppercat fight them but are no match, but then Rokusho comes and saves the day.

Dr. Meta-Evil uses Metabee's medal to control every Medabot in the world! Brass starts to attack Erika and Karin and Kantaroth starts attacking Rintaro and his group. Then, amasingly, we find out that Dr. Meta Evil was once Dr. Hushi's assistant. Dr. Hushi found out the power of the rare medals and he wanted to distroy all his reaserch and findings but Dr. Meta-Evil stole the information to use it for evil. More suprises are in store when it's revealed that Dr. Meta Evil is part machine himself! Peppercat and Sumiliodn attack him but don't do much damage. Rokusho distracts the Evil Doctor as Ikki stes Metabee free. When he does that, the curse is broken.

After their near defeat in the exhibition match, Ikki and Koji are worried about how they will fare in the championship, especially as Space Medafighter X still hasn't turned up. While the two start arguing about who is going to be team leader, they rescue a little girl from the Caribbean team and let her watch them training. When the robattle begins later that day, Karen has to take MedaX's place yet again, but as the robattle begins they realise that the girl they helped was actually the daughter of Team Caribbean's leader. As the Caribbean rips through Team Japan, the three have to work together in order to defeat their opponents and make it through to the next round. With the three friends finally working together, Henry decides that it is time for the real Space Medafighter X to make his appearance, but how will the team fare against the rest of the opposition.

Ikki and Koji become suspicious when they learn that Tem France has won all of their matches by default because their opponents have failed to turn up. When Metabee's medal goes missing, the gang suspects that Team France have stolen it, but find that their opponents are able to dress up like other people, making them hard to catch. As the gang tries to recover their medals, Team France kidnaps Karin, so Samantha has to stand in as Space Medafighter X, but as the Robatlle prepares to begin, the real Space Medafighter X (a.k.a Phantom Renegade) has switched places with one of the members of Team France and so the team has to forfeit the match, meaning that Team Japan advances automatically.

Ikki, Koji and Spyke (Space Medafighter X) find themselves up against Team Egypt in the quarter finals, but when the leader of the team, Patra, warns them that they can't win until they identify their weakest link, Koji is sure that she means Spyke because he has the weakest Medabot. As the three begin training, Spyke tries his hardest but Koji tells him to just stay out of the way and leave him and Ikki to do the robattling. However as the robattle begins and Team Egypt takes an early lead, Patra informs Koji that he is the weakest member of the team. As a stunned Koji tries to take in what his opponent has told him, it's up to Spyke to save the day and stop Team Egypt from winning the robattle. Meanwhile, Ikki and Rintaro learn about the Ten Days of Darkness that occurred during the WRC eight years ago and Ikki is stunned to learn that the competitor who caused the incident (the same Henry who Rintaro is obsessed with) caused the Ten Days while using a Metabee.

While traveling across the nation, training to become the best in the country, a Medafighter stops at Ikki's home. He is looking for a blue and white Medabot that interrupted his training in the mountains. The Medafighter tells Ikki that over 100 Medabots attacked him at one time and defeated his Kintaro-Type Medabot Kintaro. He can't remember seeing an Medafighter, and only remembers a white and blue Medabot with horns. A blue and white Medabot with no Medafighter? That description fits Rokusho, but he can't possibly be the one that did this terrible thing, can he? When Rokusho is confronted, the truth is revealed - it was indeed Rokusho who interrupted their training, but for good reason. Acting alone, Rokusho did this because they were cutting down trees during their training. He stopped their training not with force but with compassion. This sounds more like the Rokusho that we know!

Erika, Zumi and Ginkai help prove Ikki and Metabee's innocence but will they survive Kam's latest trap?

Ikki and Metabee don't get along so well and Henry explains why. Ikki starts to understand why and decides to Ro-Battle the screws. At first, they don't get along and Metabee starts to lose really badly. When Ikki and Metabee start to work as a team, they beat Sammantha and Peppercat.

As competitors from around the world gather for the start of the World Robattle Championships, Mr Referee is shocked to be informed of a new rule for the contest. As Ikki and Koji meet up, they worry that Space Medafighter X might not turn up for the competition and that they will be disqualified, however Ikki and Metabee have more important things to worry about when they immediately get off on the wrong foot with world champion Victor of Team Kenya. When Ikki learns that an exhibition match between Team Kenya and Team Japan will be held during the opening ceremonies, he and Metabee look forward to taking Victor on, until Space Medafighter X fails to turn up for the opening ceremony. As the teams are all introduced, Mr Referee reluctantly announces the new ruling for the championship, that the loser of each robattle must give up their medal to the winner. The stunned players take in the news as the exhibition match begins, but with Space Medafighter X still a no show, Team Japan is ab

As Team Japan prepares for their fourth round match against Team Sweden, Ikki, Koji and Sloane (Space Medafighter X) are all infatuated by the three beautiful girls that make up the team. As Spyke and the girls try to snap them out of it, it seems like there is nothing they can do to get the guys to practice. When the match begins, it seems like Team Sweden is in for an easy victory, until the Phantom Renegade reveals that Team Sweden are actually male Rubberrobo Gang members dressed up like beautiful women. Furious that they have been tricked so easily, Metabee wipes out his opponents using the Medaforce, taking Team Japan through to the final eight.

As Team Iceland recovers from their defeat, everyone is in shock as the board of directors for the World Medabot Corporation reveals themselves to be the Rubberrobo Gang. While Ikki tries to take in the news, Koji is pleased to hear that Sumilodon should be fine to battle in the finals, however things won't be easy against the World Champion, Victor. Seeing the Robos on television, Miss Caviar recognises Seaslug as the man she fell in love with and tries to talk to him, but when he ignores her she vows revenge, forcing Dr Aki and the Phantom Renegade to let her be Space Medafighter X in the final round. Meanwhile Rokusho learns tyhat Victor has been hired by the Rubberrobos and warns Ikki, who confronts Victor when Mrs Tenryou accidentally invites him home for dinner. During the meal, Victor tells Ikki more about the horrors of the Ten Days of Darkness, but even after hearing his warnings, Ikki is still determined to beat Victor and wim back Orkamar's medal for Belmont. As Team Japan p

As the finals of the WRC begin, Miss Caviar (as Space Medafighter X) heats things by making a special announcement to the head of the Medabot Corporation, Seaslug. If Team Japan wins the Cup, then Seaslug must quite the Rubberrobos, however if Team Kenya wins, Miss Caviar will join the Robos. As the robattle begins, both teams are on top form and it looks like it could be anyone's game. But as the two teams fight on, Medabots are destroyed one-by-one until only Metabee and Warbandit are left. A crushing blow from Warbandit almost destroys Metabee and in the process fries Ikki's medawatch. Certain that he has won, Victor prepares to leave the stage, but Metabee refuses to give up, summoning the Medaforce to eliminate his opponent. But when Warbandit also summons the Medaforce, the two blasts hit each other head on and the stadium is filled with light...

The violent combination of Metabee and Warbandit's Medaforce blasts shakes the whole stadium, as, far beneath the arena, Rokusho and the Phantom Renegade discover that the Rubberrobo Gang's hideout has been beneath the Medadome all along. They discover a massive resonating antenna, and the Phantom recognises the truth, racing to tell Doctor Aki while Rokusho takes on a team of Whitesords. Warbandit and Metabee, meanwhile, appear caught in a state of suspended animation, and, in a dream state, deep in the recess of his own mind, Metabee sees a world devastated by war. Victor and Ikki bring their Medabots around, but the strength of their robattle spirit is affect both their medals, and the medals of all the other Medabots around them - and the Phantom Renegade suddenly appears to explain why! The entire stadium is a gigantic resonance device, harnessing the energies of the rare medals and spreading it's effect to all the medals within.

Mystery Medafighter uses his near-invincible kilobot, Exor, to defeat Ikki, Metabee and anyone else who gets in his way. But does he have the heart to destroy his own medabot, Roks?

Ginkai rediscovers the friendship of his first Medabot, Bayonet, but will he put that friendship in jeopardy by answering Kam's challenge?

Space Medabotter X goes to share information with Koji on how he can compete against Ikki and Metabee's Rare Medal. Although Koji can't invoke the Medaforce, there are ways to combat it. Still ranked at only number four, Ikki desperately looks for a new opponent to Robattle in order to regain his top three ranking. Squidguts and Samurai-Type Medabot Gobanko spread the word that they are looking for a Robattle with a formidable opponent. They wait for Ikki and Metabee on top of a pedestrian bridge. When doing battle against Squidguts, Metabee is again able to summon the power of the Medaforce to defeat his opponent.

Stunned by the news that Hikaru Agata and Metabee caused the Ten Days of Darkness at the WRC eight years ago, Ikki and the others head off to find Henry, certain that he knows more than he is letting on about the incident. On the way, Ikki explains that Henry suggested the name Metabee, and he thinks that Henry and Hikaru may be one and the same. While the gang have no luck finding Henry, Koji is in shock after seeing how he almost let the team down against Patra and Team Egypt. As a disheartened Koji wonders how he can help the team without being able to use the Medaforce, a confrontation between Joe, the leader of Team USA, and Space Medafighter X results in the real Medafighter agreeing to fight in the semi-finals. As the robattle begins, Koji is unable to fight and Team Japan looks set for an early defeat, but as Arcbeetle seemingly destroys both Team USA's Medabots and Metabee as well, Sumilodon jumps in, rescuing his team mate. Determined not to lose, Joe reveals his secret move,

When Ikki wins two free tickets to popular Ninja Park, Erika persuades him to take her as his free guest. Ikki's first choice was Karin, but Erika wants to do a story on the park. Ikki reluctantly agrees because Erika took one ticket and wouldn't give it back. The main attractions to the park are the Explosive Ninja Show that features Ninja-Type Medabot Nin-Ninja and Kunoichi (Female Ninja)-Type Medabot Icknite, as well as the Ninja Castle that says closed for renovations. Disappointed, Ikki and Erika proceed to the Ninja Show. As the Ninja Show begins, Ikki and Erika notice that the monsters in the show look very much like the Rubberobo Gang. Seaslug has decided to hold Ikki and Erika captive until renovations are completed on their new base Ninja Castle! The Rubberobo Gang has stolen the Medals of Nin-Ninja and Icknite, and has complete control over them. Intuitively knowing that Ikki and Erika are in trouble, Metabee and Sailor-Multi (nicknamed Brass) come to their rescue.

Spring is in the air, and like flowers, the hearts of men are blooming for Miss Mimosa, a popular teacher at Ikki's school. Coach Mountain, Squidguts, and the local florist, Mr. Richards all want to confess their love for Miss Mimosa but are too shy. Not surprisingly, Mr. Richards tries to express his feelings with flowers. But now someone is stalking Miss Mimosa by making crank telephone calls, following her home and breaking into her classroom. They discover that Mr. Richards' Medabot Flower-Type Medabot FLORO is the culprit. He tried to act as a go-between by calling her at home and visiting the school, all in an attempt to bring Mr. Richards and Miss Mimosa together. Then, just like his Medafighter, FLORO became shy and nervous when he approached her.

Ikki is accused of being the Phantom Renegade by a reporter so the reporter follows him everywhere and even starts mimicking the Phantom, hoping Ikki would reveal his secret. But then the real Phantom (not Ikki or the reporter) comes out into the opening seeking revenge.

Rokusho finds out that Dr. Aki was the one that set fire to Dr. Hushi's house and Rokusho gets VERY angry. Metabee tries to protect Dr. Aki and has to Ro-Battle Rokusho. When Metabee is about to win, Rokusho uses the 'Medaforce' (which is a medal's maximum power) to pummel Metabee into oblivion. Metabee is beaten so badly that his medal comes out. Just when things can't get any worse, Dr. Meda-Evil releases a REALLY BAD and strong medabot to Ro-Battle Rokusho and take his rare medal. Will Rokusho win the Ro-Battle with Dr. Meda-Evil? Will Ikki & Metabee ever win a Ro-Battle again? Find out in Part 2.

Dr. Meta-Evil's super strong bot, the Robo-Emperor, strats reaking havok and Rokusho gets kidnaped by the Rubber Robo Gang and is taken to a ship where they hope to get a rare medal. Ikki find more info on rare medals. He finds out that Dr. Hushi (Rokusho's Medafighter) was the first to find out that the medaforce comes from a Medabots rare medal. The RRG replaced Baton's memory chip to think thta it was his fault for killing Dr. Hushi. Metabee, once again, goes to save the day and finds himself in a battle with the Robo-Emperor. Metabee tries to fight but is injured. Once Rokusho finds out who really killed Dr. Hushi, he tries to help Metabee. They are both no match for the R-Emp but when it seems that all hope is lost, Metabee uses the Medaforce to win the Ro-Battle. Ikki is amazed when he finds out that Metabee has a rare medal. He is even more amazed when Metabee's medal evolves.

Spyke and Cyandog argue with each other and the two end up going their separate ways, with Cyandog deciding to join The Rockers. Determined not to show how much he misses his old Medabot, Spyke buys a Krosserdog Medabot but it just isn't the same without his old buddy. The two eventually reunite, but the turn of events leaves Cyandog's medal in Krosserdog's body, giving Spyke his old friend in a new way.

ERIKA must choose between her integrity and journalistic success when she competes with Kam and his kilobot, Fotoshoot, in ‘best scoop' contest.

Tak and Ikki learn that hard work and practice will always come before trickery and brute power…especially in Robattling!