Seven years ago, a meteor slammed into the city of Shibuya and destroyed it, carrying with it the Worms, alien lifeforms that blend into the human population by copying people’s forms. The paramilitary corporation ZECT fights the Worms, developing the Masked Rider System as their anti-Worm weapon. When the paths of ZECT member Kagami Arata and the mysterious Tendou Souji cross, the day Souji has waited for finally arrives, as he is the man who walks the path of heaven…

Arata struggles with the Kabuto Zecter having chosen Souji over himself, especially in the face of Kabuto’s defeat against the Worms’ Clock Up ability. After enjoying a meal at a small French cafe, Souji and Arata rush into another battle with the Worms where Souji reveals that he knows more about the Masked Rider System than he first let on, gripping the Kabuto Zecter…

A woman named Yuki is attacked by the Lanpyris Worm and impersonated, but she survives, leaving two Yukis running around, but one is swiftly captured and imprisoned. Tensions increase between Souji & Arata, who is quickly falling out of favor with ZECT, as Souji sets the stage for the two Yukis to meet face to face again, kicking off a fight at an amusement park...

Arata must face the difficult truth about who his younger brother really is. Souji confronts Arata, telling him that he will defeat the Worms, no matter who they are. In the end, Arata is left with the toughest choice of his life, as the rain begins to pour…

Ending up at Souji and Juka’s home, Hiyori and Juka bond over their shared history of being present for the Shibuya meteor strike. Later, Souji offers to join Hiyori at the Tokyo Tower, but when ZECT sets their sights on Kabuto, will he be forced to break his promise?

Having been taken in by ZECT, Souji makes several demands, including speaking to Juka and asking Hiyori to make her breakfast. Arata begins to worry about Souji, but when he arrives at ZECT, Souji has already begun his escape. In the process, he learns that two of the ZECT members are Worms, and Arata tries to warn Misaki, but it may be too late...

Arriving from ZECT HQ, Kamen Rider TheBee joins the fight as Arata warns Souji to stay out of ZECT’s affairs now that they have a Rider following their orders. However, he ends up butting heads with TheBee’s user, Yaguruma Sou, ending up in a battle of tofu dishes with Hiyori as the judge. But will their clash in the kitchen spill over to the battlefield?

Souji turns out to have been correct about the other Worm escaping, so Shadow, now with Arata as part of the team, sets up at another wedding, locking it down. However, Souji manages to breach their defenses and takes on the Worm, but an angry Yaguruma won’t let this go and the two Riders face off…

As Kabuto and TheBee fight, Arata tries to stop them, giving TheBee an opportunity to gain the upper hand and destroy Kabuto’s belt. As Souji recovers from the battle, Arata struggles with his position as Hiyori once again remembers a memory of her past…

To defend the team from the Worms after Yaguruma loses his transformation, Arata obtains TheBee Zecter and transforms, finding himself as the new captain of Shadow. But can he fulfill the orders given to him from HQ?

Kagami is ready to cancel his group date until it's suggested that Tendou join him; a man with a young girl is seen walking around with a large makeup kit.

Daisuke refuses the offer to join ZECT and challenges Tendou to contest in who can attract more girls.

Kageyama joins Misaki's team after the Shadow team has been dissolved; someone within ZECT is leaking information and former Shadow team members are getting killed.

Kagami is implicated of being the traitor; Hiyori accuses Tendou of killing her parents.

Kagami decides to take a sabbatical and take on a case himself; Daisuke and Tendou have a competition over Misaki's appearance.

Tendou joins the Shadow unit as the captain, much to the chagrin of Kageyama; everyone is confused when three of the same doctor appear at the same place and none of them are attacked by a Worm.

After Kageyama tries kidnapping Gon, she becomes jumpy and Daisuke grows frustrated with her.

ZECT holds Gon hostage in order to get Daisuke to work with them; Tendou is determined to find the miso soup that Gon likes.

Tendou finds a man who is his athletic equal; a spree of robberies have been happening by someone called the Phantom Shadow.

Tsurugi heads out for groceries and causes an accident involving Tendou's little sister; the Phantom Shadow have their eye on one of Tsurugi's heirlooms.

ZECT is working on a new Rider system; Kagami stumbles upon a Worm nest with a young boy trapped inside; Tsurugi is enticed by Tendou's cooking.

Kagami is hospitalized after trying to use Gatack; Tsurugi has his birthday party at Bistro La Salle.

Kagami sees Hiyori with a green rock that is attracting Worms; Tendou finds Tsurugi's butler running a sobo cart and decides to run it for him.

Tsurugi opens a restaurant across the street from Tendou's sobo stand; Hiyori wants to go into Shibuya with the hope that she'll uncloud her memories.

Tendou decides to try and get information through the police rather than ZECT; a Worm takes on Misaki's form and goes after Juka.

Misaki and Kagami's plan to get inside ZECT headquarters has failed; Misaki's Worm doppelganger has found her way to Tsurugi.

ZECT makes an alliance with a Worm; Gon remembers Daisuke and wants to see him again; Jiiya falls ill and Tsurugi learns that he is broke.

The other Riders are called in to see that Daisuke has been murdered and the one currently running around is a Worm.

Tendou is given a knife by a dying man who wants to see it given to its proper owner; Junka visits a restaurant that has had all of its customer's stolen by a place across the street with a new chef.

The wielder of the black knife is going around and asserting his dominance to all of the local shops when Tendou challenges him to a rematch.

Kagami investigates after discovering that Tsurugi is a Worm; Hiyori finds a photo of her parents at Tendou's house.

After Hiyori finds out that she's a Worm, Tendou tells her about the murder of his parents.

After having lost Hiyori, Tendou joins ZECT and plans to take the Zecters from every Rider.

Tendou learns of the Hyper Zecter; Renge is enticed to try real food again; Tsurugi wants to know what it's like to live like a commoner.

Tsurugi explains to Kagami that he doesn't need the powers of Sasword anymore; Kageyama is determined to become The Bee again.

Kagami learns that Worms have been here long before the meteorite; Tendou is warned that Kabuto and Gatack have minds of their own.

The baseball team from Juka's school disappears right before her trip which causes Tendou to investigate.

Juka leaves for her trip as Tendou unravels the mystery of the mirror.

After being defeated by Tendou, Daisuke finds Rena who is now not aware that she is a Worm; Tsurugi asks Kagami to help him ask out Misaki; Tendou laments about not being able to find a way back to Hiyori.

Yaguruma develops a crush on Rena; Daisuke is forced to deal with the fact that the women he loves is a Worm.

ZECT develops an Anti Mimic Bomb to counter the Worms; Kagami learns that his father is the head of ZECT.

A group of Natives have been kidnapped and Kagami is chosen to lead the negotiations; Yaguruma challenges Tendou to another tofu battle.

Tendou finds out that his mimic self has crossed over to this world; Kagami is called in to fight a Worm and has his Rider Kick turned against him.

Tendou and Kagami wonder if Hiyori was telling the truth about not wanting to return; ZECT is having a hard time trying to keep an army of Worms out of Area Z.

Tendou recruits as many of the Riders into ZECT as possible; Tsurugi asks Misaki out on a Christmas date.

Tsurugi discovers the truth that he is a Worm.

The Natives have made a necklace that detects Worms and ZECT are giving them out to everyone in the city.

Tendou learns that the necklaces are actually turning people into Worms; Kagami joins with the Natives to strive to create a peaceful world.

Kagami learns of the truth and heads out to stop the world from being turned into Worms.

Sougo Tokiwa seems like an ordinary high school student, but one thing he has different is that he has dreams of becoming a king! One day, a mysterious young man appeared before him with a prophecy. "Congratulations! Today is a special day for you..." As Sougo is told these words, a giant red robot suddenly appears before him! This robot was a time machine, and Sougo was thrust across various timelines! In the year 2000, the battle of the Heisei Rider's fate, and Sougo's fate in his own birth year, is about to begin...!

The man who hails from the future, Geiz, attacks Sougo! Tsukuyomi, a girl who also hails from the future, came to help out Sougo, but Sougo has absolutely no idea what's going on! A mysterious prophet named Woz is also starting to appear frequently before Sougo. The creature, Another Build also attacks. What could be the key to defeating this "Kamen Rider Build"? Sougo makes his way towards the Nascita Cafe to meet with Kiryu Sento...

A strange collaboration between Geiz and Tsukuyomi happens with Sougo in the year of Build, 2017. They both decide to go to Sougo's school to keep a closer eye on him. While there, they discover a growing popularity of a "game that no one can clear" with the other students. Rumors surrounding the Genius Gamer M start to surface as well, as they decide to chase the mystery by finding him. And Sougo and the others end up meeting...? Suddenly, a new Time Jacker, Ora appears!

Ora has given a father the power of Another Ex-Aid as part of a bargain for his son's life. Geiz and Sougo travel back to 2016 to help him.

Tsukuyomi and Geiz learn that 18-year-old Libras have been going missing from Amanogawa High for years and want to check it out, thinking that it's probably an Another Rider plot; Schwartz makes his presence known to Uhr and Ora, forcibly creating a new Another Rider.

Takumi joins Sougo in protecting Karin from Another Fourze; Tsukuyomi and Geiz learn that Karin is actually much older than she looks.

Sougo learns of a magic show and wants to check it out. After seeing the magician in action, Geiz believes that he might have been given the powers of Kamen Rider Wizard and wants to fight him.

Geiz tracks down Kousuke in order to get his hands on the Wizard Ride Watch.

Uhr gives Kuroto Dan the powers of Kamen Rider OOO, which leads to Kuroto declaring himself king in 2018. Sougo finds common ground with this new Kuroto and wants to learn from him.

Sougo asks Kuroto just what type of king that he wants to be; Tsukuyomi learns to listen to all points of view.

Sougo and Tsukuyomi search for Geiz when Sougo notices the news that Team Baron dancers have been disappearing, but Tsukuyomi gets fed up with Sougo constantly returning just after leaving and having an inconsistent memory.

Sougo is revealed to have traveled back in time to save Geiz, and so there are two of him in the present, but Woz isn't very keen on this plan.

Takeru Tenkuuji and company have been hired by a woman to investigate Another Ghost after her brother mysteriously disappeared; a confrontation occurs with what appears to be Kamen Rider Agito.

With Sougo's soul separated from his body, he guides Takuru back to the year 2015 where Geiz has his Ghost watch taken from him in exchange for a Decade one.

Oma Zi-O sends a fleet of Dai Mazine to 2018 and a loyal follower to take out Geiz and Tsukuyomi; Tsukasa sends Sougo to meet his future self.

Sougo returns from the future and destroys his belt, ensuring that he will not become Oma Zi-O, but he is later attacked with no one to turn to for help.

Sougo has a dream that he is in the year 2022 and meets a man who goes by Kamen Rider Shinobi. Later, he encounters an Another Rider with the same attacks and a second Woz appears.

Sougo and crew are confused over the appearance of "White Woz"; Geiz and Tsukuyomi try time traveling to get the Kamen Rider Shinobi watch but are forbidden to land.

Sougo and Geiz head into battle with an Another Rider when the original Rider also arrives on the scene. How are both Kamen Rider Quiz and Another Quiz active at once?

Sougo works with Mondo to get answers from his dad and Geiz works with "White" Woz to stop Another Quiz.

Heure breaks a mirror and gives an Another Rider watch to a man inside; Sougo and Geiz have trouble defeating an enemy who keeps retreating even though he has nowhere to run.

Sougo battles with his self on the other side of the mirror; Geiz tries defeating Another Ryuga when things go horribly wrong.

Sougo falls asleep while studying and travels 100 years into the future to a world where humans and machines are at war; Tsukuyomi joins forces with White Woz.

Sougo dreams of Kikai going evil while Ora asks White Woz for help with Heure; Geiz asks Tsukuyomi if she really wants to align herself with White Woz.

A man with a connection to Sougo's past is taking the leftover energy from previous Another Riders.

Tsukuyomi travels back in time to investigate Hiryuu Kakogawa; White Woz tells Geiz that his watch won't activate until he's committed to killing Sougo.

After getting beat by Geiz, Black Woz goes to Ora and Heure for help; Schwartz recalls the first time he met Tsukuyomi.

Tsukuyomi learns about Sougo's past; Sougo and Geiz prepare for their showdown.

Kamen Rider DiEnd runs off with Sougo and Geiz's watches when Tsukuyomi gets word of Another Blade; Sougo forces Woz and Geiz to work together.

White Woz has Blade and Chalice fight to bring on the end of the world; Black Woz and Geiz settle their differences.

Sougo and crew watch a news report of the G3 unit getting attacked by Another Agito. When they arrive during another attack, Sougo learns that Another Agito is able to multiply and one freezes in front of Tsukuyomi.

The Timejacker steal the real Agito's power; Woz questions Schwartz about Tsukuyomi's newfound abilities.

It's Sougo's birthday and Woz wants to make it special; Sougo's former classmate who wanted to become an oni is turned into Another Hibiki.

Kyousuke has been outed as not being Hibiki; Sougo has Todoroki take Woz as his pupil for the day.

Sougo recalls his first love from elementary school; Ora recruits a woman falsely accused of murder to become Another Kiva; a new Kamen Rider falls from the sky.

Schwartz calls a temporary truce with the Kamen Riders to stop Ginga; Sougo tries to get Yuuko to stop her revenge.

Sougo and the others watch a news reporter turn into a monster; Tsukuyomi remembers a piece of her childhood; a meteor is heading for Earth.

The Hell Brothers steal the Fourze and Ginga watches so that Sougo and Woz cannot stop the asteroid; Tsukasa takes Tsukuyomi to visit her childhood home.

The DenLiner breaks down and the Imagin go to Junichirou to fix it; Yuuto Sakurai and Deneb emerge to stop Sougo from obtaining an unstoppable power.

Momotaros is warned about the demon king by Yuuto, taking back the Den-O watch in the process; the gang must travel back to 2011 to stop the Mole Imagin.

After being defeated by Oma Zi-O, Sougo arrives back in 2019 where all his friends have turned against him and his only ally is a passing through Kamen Rider.

Tsukuyomi saves Sougo from an attacking Geiz; Schwartz recruits Daiki Kaitou after he's caught stealing from Another Zi-O.

Schwartz reveals to Tsukuyomi that they are siblings; Ora and Heure are relieved of their Timejacker duties.

Kamen Rider Aqua arrives in a prototype Time Mazine to take Geiz and Tsukuyomi back to the future; Heure and Ora seek shelter with Sougo after being attacked by Another Drive.

Geiz doesn't trust Heure after finding out that Ora is Another Drive; Schwartz uses his powers to summon Kamen Rider Eternal.

Sougo and crew attempt to make a deal with the newly revived White Woz to save Geiz.

Sougo is given an ultimatum regarding his path by Schwartz and takes Tsukuyomi to visit her own time; enemies that should be defeated because of the previous Kamen Riders are now all returning.

Tsukasa has a plan to stop Schwartz, but it doesn't involve Sougo surviving the outcome.

Tsukuyomi has transformed into a Kamen Rider and the final battle has begun.