S1 • E1
The human world merges with the parallel world of Kikaitopia and the inhabitants of both worlds begin coexisting. But when the evil Tojitend dynasty begins their invasion, Kaito Goshikida obtains the powers of the Super Sentai across history to transform into ZenKaiser and joins forces with the Kikainoid Juran to fight back.
S1 • E2
Kaito and Juran made their decision and in transforming they've grounded their opposition to Tojitendo's forces. In the plaza, a figure was captivated by Kaito's enthusiasm as he was approached by none other than Kikainoid Gaon.
S1 • E3
The Zenkaigers keep looking for new members and encounter the female Kikainoid Magine while facing a monster that freezes everything around him.
S1 • E4
The Zenkaigers are in search of their last member, and they will run into the Kikainoid Vroon, which is characterized by its enormous curiosity.
S1 • E5
After the monster from the world of Sushi wreaks havoc in the city, three of the Zenkaigers devise a plan to lure it in.
S1 • E6
Barashitara once again employs the help of Gomi World to bury the Earth with garbage despite Boccowaus' protest.
S1 • E7
The mysterious individual reveals himself as Stacey, who uses Ijirude's Geartozinger and Dark Sentai Gears to unleash fake versions of the Gorengers, Magirangers, and Boukengers against the Zenkaigers.
S1 • E8
Just as suddenly as Stacaesar's summoned Sentai appeared, they disappear due to the Geartozinger's energy being depleted.
S1 • E9
Zocks brings his siblings, sister Flint and brothers Cuttaner and Ricky, to Colorful to introduce themselves after the fight with Stacaesar.
S1 • E10
The Zenkaigers manage to reach a truce with the World Pirates and convince them not to commit any acts of piracy. However, a strangely cheerful Zocks continues to endanger civilians while fighting Tozitend's Mahiru World.
S1 • E11
The Zenkaigers and World Pirates find themselves in a strange game of "oni tag", wherein people designated as "oni" can turn others into more oni by touching them.
S1 • E12
Barashitara sends Katatsumuri World to trap his victims in a slowdown barrier, with Juran, Magine and Zocks among his victims.
S1 • E13
The Zenkaigers start to become popular with their fellow citizens, with Gaon in particular getting to enjoy playing with human children.
S1 • E14
After defeating Dai Recycle World and receiving an invitation from Stacey, Zocks challenges Kaito to a duel under the promise of having him assist in accessing Tozitend's base to obtain the SD Toziru Gear.
S1 • E15
At Colorful, the Zenkaigers meet an introverted boy named Ryo, who had just moved out and is having trouble adjusting to his new neighborhood.
S1 • E16
Because of Bokkowaus' favoritism, Gege gets another chance by deploying Jishaku World to magnetize the townspeople, including the Zenkaigers.
S1 • E17
A trio of children forms an occult club with Magine after reports of paranormal activities in their school.
S1 • E18
Barashitara deploys Renai World to put the city under his love spell, with Vroon in particular falling for Kaito's former middle school classmate.
S1 • E19
Barashitara employs the help of Kabutomushi World to send the Zenkaigers and World Pirates into a rhinoceros beetle hunting illusion, doing so under the premise of providing Tozitend with a supply of free labor.
S1 • E20
After Magine is kidnapped, the other Zenkaigers look for a way to rescue her. Meanwhile, Zocks returns from the World of Saber, but is followed by the Shindai siblings, who want to settle a score with him.
S1 • E21
Tozitend deploys Copy World, who is capable of making evil copies, to attack the city. The Zenkaigers and World Pirates attempt to fight back, only to learn evil versions of Kaito and Zocks were produced. In order to face this threat, the real Kaito and Zocks will have to combine the power of their Zenkaiju Gears and form a new mecha.
S1 • E22
The Zenkaigers attempt to fight a bullfighting-themed World, but their Zenkaiju Gear has attained sentience and run away.
S1 • E23
Stacey uses Battle Caesar Robo II and an army of Sentai copies to overwhelm the Zenkaigers and their mecha, though Kaito has doubts regarding Stacey's conviction.
S1 • E24
Tozitend deploys Vacances World to attack the city, and the latter appears to succeed quickly. Seeing no harm in the World's actions nor in taking a vacation, the Zenkaigers and World Pirates join in on the fun with their opponent, but Barashitara was forced to kill Vacances World after his attack affected even the entire Tozitend army while forcing the latter's Toziru Gear into one of the Kudaitests. After the fight, the Zenkaigers were reprimanded by Yatsude for leaving Colorful in mess during their time under Tozitend's influence.
S1 • E25
The Zenkaigers face off against Sundial World that turns the clock back to day 1.
S1 • E26
Ijirude finishes treating Stacy and applies some upgrades into his body before sending him to fight the Zenkaigers again.
S1 • E27
Certain that Mitsuko escaped to another world, Kaito begins searching for her across the worlds he and the Zenkaigers previously liberated along with Juran, Magine, and the World Pirates while Ijirude orders Stacey to look for her as well.
S1 • E28
Tozitend sends Manga World to turn people into manga characters. The Zenkaigers fight back, but Juran and Magine get trapped in a manga and learn they have to survive or else they cannot return.
S1 • E29
The Zenkaigers find themselves overwhelmed by Tennis World, so the World Pirates step in to help improve their allies' tennis skills.
S1 • E30
The Zenkaigers find themselves facing off against Reverbating World and Tozitend hitman Hakaizer, who wields a gun capable of summoning multiple past Sentai members at once.
S1 • E31
Tozitend sends Milk World who uses his powers to turn all things white. The Zenkaigers appear to fight him but are stopped by Hakaizer.
S1 • E32
While Zenkaiser and Staecaesar face off once more, Inverted World interrupts them by swapping their bodies.
S1 • E33
S1 • E34
S1 • E35
The Kikainoids grapple with how to tell Kaito that Hakaizer is Isao as well as a separate diamond-related situation.
S1 • E36
Accepting the revelation that Hakaizer is Isao, Kaito tells Zocks, who agrees to help him save Isao. While working on a plan to lure out Hakaizer, the Zenkaigers and World Pirates have to face Bikkuribako World.
S1 • E37
As Tozitend sends a radish-themed World capable of manipulating discarded items to attack the Zenkaigers, Magine and Flint help a little girl who seems to be searching for something.
S1 • E38
As the Zenkaigers and World Pirates prepare to celebrate Kaito's birthday and Christmas, they find themselves under attack by Bon World, Shougatsu World, Stacy, Hakaizer, and all of the combatants' ancestors.
S1 • E39
The Zenkaigers and World Pirates attempt to continue celebrating Kaito's birthday, Christmas, and New Year's, but Shougatsu World attempts to use his powers to make them forget the past year.
S1 • E40
Ijirude upgrades Hakaizer and gives him a mecha called HakaijuOh to overwhelm the Zenkaigers. In response, Kaito resolves to face Hakaizer with everything he has and get his father back.
S1 • E41
With Isao free of Tozitend's brainwashing, he and Kaito are able to reunite after being separated for so long. However, their reunion is short-lived when they, the Kikainoids, and the World Pirates become embroiled in a culinary competition to determine whether soba noodles or udon noodles are better.
S1 • E42
Tozitend sends Kotatsu World to weaken the Zenkaigers and World Pirates' resolve with his namesake, leaving the heat-sensitive Juran to face the new World and Barishitara alone. In desperation, he uses a strange Sentai Gear unconnected to his Sentai predecessors to summon a new hero.
S1 • E43
Tozitend sends a weathercock-themed World to use its wind-based powers to overwhelm the Zenkaigers and World Pirates. Stacy seemingly defects from Tozitend to aid the heroes, but they are suspicious of his uncharacteristic smiling and sudden change in sides.
S1 • E44
The Zenkaigers and the World Pirates encounter SD World, who possesses the Toziru Gear the latter group seeks to cure Cuttaner and Ricky.
S1 • E45
With SDtopia and Kaizokutopia freed from Tozitend's clutches, the World Pirates leave to pursue a new journey. However, the Zenkaigers are attacked by Omikuji World, who is capable of manipulating their fortunes
S1 • E46
Using Stacy's body and pretending to be a god, Gege offers the Zenkaigers a way to storm Tozitend's palace and free the remaining captive worlds.
S1 • E47
With Stacy free from Gege's control, the Zenkaigers join forces with him and the returning World Pirates to mount an assault on the Tozitend Palace and defeat them once and for all.
S1 • E48
With Ijirude destroyed, the Zenkaigers now face Bokkowaus, who has regained his original form, while Secchan joins the fray to combat Gege.
S1 • E49
Tozitend was destroyed, Kaito reunites with his parents, and both the World Pirates and Stacy leave to move with their own lives, but Earth and Kikaitopia was separated and Kaito lost his memories of his time with the other Zenkaigers.
Kaito Goshikida
Juran
Gaon
Magine
Vroon
Secchan
Yatsude Goshikida
Great King Boccowaus
Ijirude
Barashitara