In the Machine World, the Engines Speedor, Bus-on, and BearRV defeat Gaiark's three Pollution Ministers in a race, knocking the three last survivors of their kind into a wormhole leading to Earth. Six months later, deciding to make Earth their home by polluting it, Gaiark start attacking the human race with their Barbaric Machine Beast Shoukyaku Banki leading the Ugatts on the day of a wedding. However, Shouyaku Banki faces three carefree humans, Sōsuke, Renn and Saki, who knew of Gaiark as they
Water Pollution Minister Kegalesia sends Pipe Banki to pollute Earth's waters. Bomper, the Go-onger's support robo, picks up on Pipe Banki's presence and sends the three Go-ongers to the nearby dam to battle the foe. Surprisingly, Pipe Banki escapes before the battle's end, satisfied with how his powers have affected the water supply. During the fight, Gunpei sneaks aboard the Ginjiro-go, kidnaps Bomper, and steals the Engine Casts, intending to ask the robot about the Go-ongers again. Hant appe
While Renn and Saki practice sparring with Gunpei, Sōsuke goofs around with Hant until Gunpei trips him. Gunpei criticizes the primary Go-ongers' childish antics until Bomper reports Gaiark activity at a mountain in nearby northern Kanto. Once there, the Go-ongers are shaken by a sudden tremor that takes out the forest before the gang get ambushed by the Ugatts. While the primary Go-ongers battle the Ugatts, Go-on Black and Go-on Green leave the fight and find the source of the tremor: Scoop Ban
Gunpherd and Birca, the other two Engines sent to pursue Gaiark alongside Speedor, Bus-on, and BearRV, finally arrive on Earth. Bomper detects their signatures as they reach Earth's atmosphere. The Go-ongers rush to the landing site as Kegalesia tries to intercept them. Gunpei finds the Engine Soul of Gunpherd, but not his Engine Cast. Gunpei and Sōsuke eventually discover that Gunpherd's Engine Cast is in the hands of a boy who thinks it is a toy. While Sōsuke and Gunpei attempt to get Gunpherd
As Renn prepares breakfast, Hant leaves to work part-time at the PaPa Crepe Shop, where he meets and flirts with girls his age. Renn, Saki, and Sōsuke debate whether or not Hant should even have a part-time job, until Bomper alerts the Go-ongers to the arrival of Jishaku Banki, who is using his power of magnetism to attract all metallic objects to himself. The remaining Go-ongers fight and defeat the Barbaric Machine Beast with Hant arriving afterwards, much to Sōsuke's annoyance. Sōsuke tells H
After Sōsuke attempts to apologize to Saki for unwittingly upsetting her, she is drawn to a beautiful melody played by a handsome flautist named Seiji Ogawa. Suddenly, Speaker Banki appears and turns Seiji's beautiful music into noise pollution. Saki rescues Seiji from the Savage Machine Beast's attack before she and Sōsuke fight him. The other Go-ongers arrive, all wearing earplugs, and damage the monster's speakers, forcing him to retreat. Seiji asks Saki out on a date, and when Sōsuke gets wi
Two shadows are seen moving about underground, with the Go-ongers pursuing what they think are two Savage Machine Beasts. Once at the rusted Tokyo Tower, with Gunpei and Gunpherd having a falling out over whose fault it was that three bullets went astray when the team scrapped Speaker Banki, the Go-ongers divide into two teams to counter these monsters when they split up. Soon after, Gunpei's group encounters the mysterious being, the Engine Carrigator of the Gian Race. As Carrigator attacks Bir
The giant Boring Banki attacks the city until the Go-ongers arrive, letting Carrigator rest due his massive recharging as the primary Go-ongers attempt to use Speedor and the others. However, the primary Go-ongers learn their Engine partners are unable to enlarge due to Bombe Banki's attack. As Boring Banki withdraws, the Pollution Ministers arrive to take out the Go-ongers personally with the Engines disposed of, defeating them easily with their barrier attack. Later, after an attempt of removi
When Saki goes out shopping with Hant, Lens Banki starts attacking, taking peoples' pictures before they disappear into the Junk World, another Frame Dimension like Machine World. When Go-on Green tries to contact the others, he and Saki get their pictures are taken by the Savage Machine Beast and disappear into the Junk World. Realizing they cannot change or communicate, Saki blames herself with Hant cheering her up as he promises her they will get back. Back in the Human World, Sōsuke and the
While the others choke down the breakfast Saki has made for them, Renn works on retooling Speedor, Bus-on, and BearRV to work with Carrigator. At Hellgailles Palace, thanks to the images Lens Banki took before he was destroyed by EngineOh and GunBirOh, the Pollution Ministers collaborate to create a special Savage Machine Beast that can replicate the Engines' special attacks: Kagami Banki. Once the enlarged Kagami Banki goes on the attack, the Go-ongers form EngineOh and GunBirOh to fight it, bu
When Gunpei talks with Hant about his part time flower arranging job and Gaiark not surfacing since the debut of EngineOh G6, Bomper tells them to turn on the TV, which shows Sōsuke as a G1 Racecar Driver in an upcoming race, Saki as an idol, and Renn as a Quiz Encyclopedia game show contestant. When Hant runs off when he learns he is to inherit a fortune from millionaire Kinzoshi Kanekura, Gunpei is forced to run from the police when charged for robbing a bank. Deciding to do something about th
While the other Go-ongers are practice sparring with each other, Sōsuke is laid up with a cold and has been resting inside the Ginjiro-go for the last three days. The Ministers send Hatsuden Banki into the city to discharge lightning and cause mayhem. Despite his cold, Sōsuke rushes to confront Hatsuden Banki, who is none too impressed by Sōsuke's confidence. When Sōsuke executes a close range attack, Hatsuden Banki's generator overloads and discharges a bolt of lightning that zaps them both and
A mysterious childish girl is attacked by Hikigane Banki until the Go-ongers show up to save her when the Savage Machine Beast has the girl in his clutches with the Ugatts covering him. But Go-on Blue grabs the girl from Hikigane Banki, forcing him to run him away, but ends up scratching Renn. After apologizing for accidentally mistaking his intentions, the girl apologizes and introduces herself as "Būkorin". However, Gunpei's words scare Būkorin away for claiming to be from the sky and that she
After a night of working, a tired Hant crosses paths with Kama Banki who traps him among the other weary people that he captured in his hot spring. The others arrive to fight the Savage Machine Beast until they learn of Hant's fate as Kegalesia arrives to order her monster to take the other Go-ongers into his spring illusion to get them out of the way. However, Go-on Red accidentally deflects the steam at a martial artist named Mantan Fujio, dispelling the hot spring illusion to Kegalesia's shoc
The Go-ongers attempt to enjoy a picnic, with Sōsuke having horrible luck after his coin landed on tails, until Bomper alerts them to a Barbaric Dohma arriving to the Human World. When EngineOh G6 arrives to counter, the Engines reveal the pilot of the ship to be Gaiark's greatest military genius, Land Pollution Vice Minister Hiramechimedes. In spite of its components being frozen up in battle, EngineOh G6 fights Hiramechimedes who overpowers it single-handedly with his Barbaric Dohma SP before
At the Ginjiro-go, the Go-ongers talk about the strange new Engines and their intent, with Carrigator knowing only that they are of the Wing Race. However, Hiramechimedes returns to Yogostein to reveal his first confrontation with the Wing Engines as Kegalesia sends out her enlarged Oil Banki to cover the city's roads in oil to reduce friction for EngineOh G6. With the Go-ongers and Engines unable to protect themselves from the Savage Machine Beast, Toripter and Jetras arrive and tell the "amate
While being happy of their last victory and having won the Wing Engines' respect, the Go-ongers learn that Happa Banki has appeared in the city with an army of Ugatts to use his 64 sticks of dynamite to destroy buildings one after another, causing the city to fall into panic. When Sōsuke and gang are unable to the fight the crisis, the Sutō siblings arrive to back the Go-ongers up, revealing themselves as the partners of Toripter and Jetras: The Go-on Wings, who easily defeat the Ugatts without
The newest BankiJyu, Vacuum Banki, is dispatched to take down the Sutō siblings. Meanwhile, Miu, curious about what makes the Go-ongers "pathetic," drops in on the still-depressed Go-ongers. She treats the gang to a meal at a fancy restaurant and takes them shopping. Sōsuke and Miu butt heads the whole time, and she decides that she needs to work on him some more. Sōsuke refuses to follow Miu's plan and eventually deserts her. Meanwhile, Vacuum Banki's attempts to take out Hiroto are repeatedly
Waiting for the Go-on Wings, the Go-ongers wonder why their letter of joining forces as so urgent. But when the Go-on Wings arrive, it turns out that Gunpei is the one behind it, hoping he and the Go-on Wings are on the same page as pros compared to the younger members. However, Hiroto is unimpressed as he and Miu walk off to Gunpei's dismay, refusing to give up. While Gunpei is working on another letter, Hant reveals to the others of the "My Best Hero" database on his cell to the other Go onger
While Miu is out shopping, Hiroto is at a café with a blonde woman when he is contacted by his mentor. Saki sees Hiroto trying to rebuff the woman and mistakenly assumes that they are in an embrace. Suddenly, Nokogiri Banki, now rebuilt as Chainsaw Banki, arrives to destroy the city. The dust cloud created by Chainsaw Banki's destruction renders the Go-ongers unable to locate him. The Go-on Wings arrive as the dust settles, and each of the Go-ongers reveal that they have seen Hiroto out with one
With Jum-bowhale now in the Human World, he decides to bring together the Go-ongers and the Go-on Wings with a special training session by pitting EngineOh and GunBirOh against SeikuOh. Despite the failure after both robots crash, Jum-bowhale does not lose hope in the Go-ongers, much to Hiroto's dismay. As the Go-ongers are treated to a meal by Jum-bowhale, Fūsen Banki appears and starts giving away his smog-filled balloons to children. The Go-ongers run ahead to the smog-covered city, unable to
After being mortally wounded by Yogostein, Hiramechimedes goes on the run with Bōseki Banki chasing him down to finish the job. Meanwhile, the Sutō siblings question Jum-bowhale for having Bomper modify the Wing Engine casts before they encounter Hiramechimedes. By the time the Go-on Teams arrives, they see the wounded Hiramechimedes being attacked with the Go-ongers arriving to his aid too late as Bōseki Banki knocks him off a cliff. The Go-ongers follow Hiramechimedes' oil trail to find him, b
While out shopping, Hiroto is followed by Sōsuke as he wants get the teams more on the same page, though the two were total opposites, until Hiroto senses Hiramechimedes as he calls the Go-on teams out. Though intent on killing the Go-ongers to reclaim his honor, Hiramechimedes attempts uses his new attack, only to be forced to retreat. But bent on repaying Yogostein for recognizing him and naming him his Vice Minister, Hiramechimedes reaches the conclusion of following the Go-ongers' example an
At Hellgailles Palace, Yogostein mourns Hiramechimedes's death as the Vice Minister's ghost appears, frightening the Pollution Ministers. Meanwhile, the Go-ongers are out on a camping trip, stopping at a Shinto shrine by a 1,000-year-old cedar tree to wish for good luck. However, the Ginjiro-go's engine breaks down, stranding the Go-ongers in the middle of the forest, where a spirit is believed to dwell. Saki suddenly sees a small boy hiding in the trees watching them, and follows him, thinking
With Hiramechimedes gone for good, the Go-ongers decide to take a trip to the beach as part of their summer vacation. Renn takes them to the inn that belongs to his family, where Gunpei notices that Renn is acting strangely. He follows Renn to a cave in which is hidden the Kōsaka family's statue. Kegalesia and Kitaneydas arrive shortly after, having tracked an energy signature coming from the statue. They reveal that the statue is one of them. Renn is shocked and devastated by the revelation. Th
While learning about Nigorl, prince of the Arelunbra, Saki notices that BearRV is blushing. Kegalesia and Kitaneydas manage to find Nigorl zo Arelunbra and revive him, much to the former's chagrin. Nigorl reveals his surprising love of beautiful things, including Kegalesia, as the Go-on Wings arrive. Nigorl summons his Beauty Ugatts to deal with them as he duels the Go-ongers for insulting him. When Go-on Silver intervenes, Nigorl talks a reluctant Kegalesia into teaming up to form the Water Pol
After a mysterious object lands in the mountains, the Go-ongers head out to investigate. During the search, Hant loses his footing and his Shift Changer, and goes tumbling over the side of a hill. He is found by Osen, an old woman who lives on the mountain, who nurses him back to health. To repay Osen's kindness, Hant helps her move her "treasures," which are nothing more than assorted piles of junk, and learns about Osen's beloved granddaughter. Meanwhile, the other Go-ongers encounter Dowsing
People begin disappearing mysteriously throughout the city, with Gunpei frantic of the event in spite of disappearances yielding no evidence of Gaiarc involvement until they find the guilty party, Manhole Banki. After the Savage Machine Beast escapes them, the Go-ongers get arrested by the police as suspects in the missing person’s case. Once at jail, the team is released by Gunpei's old partner, Detective Sakyo Kashiwagi, of the Tokyo Metropolitan Police Department, who is also investigating th
After returning from his mourning solitude and soul searching, a raging Yogostein is convinced to rely on his very own power as he goes all out into pouring it into the creation of destructive Hammer Banki to exact his revenge on the Go-ongers. After a failed attempt to work on the newest weapon he and Jum-bowhale have been developing, Hiroto takes a break until Hammer Banki begins his attack. Finding the district in ruins, the Go-ongers encounter Yogostein as he has Hammer Banki attack them bef
Sōsuke is curious as to what will happen when an Engine Soul is set into Go-Roader GT, and uses Speedor as the guinea pig, over the Engine's vehement protests. Speedor's energy is almost completely drained in the test and he becomes furious with Sōsuke for blindly rushing forth. Just then, Straw Banki attacks the city with his Bakuha Drink. The Go-on Wings battle him until he uses his Straw Scattershot missiles on the people. The Go-ongers arrive and help the Go-on Wings battle the Savage Machin