Kamen Rider — Build
A decade has passed since a catastrophic event shattered Japan, splintering the nation into three distinct territories. Now, a new threat emerges: mysterious lifeforms known as SMASH begin appearing across the fractured land. Hope rests on the shoulders of Sento Kiryu, a brilliant but amnesiac physicist who finds himself wielding extraordinary power through the enigmatic Full Bottles. As Kamen Rider Build, he's thrust into a desperate battle to protect what remains of his country and uncover the secrets behind his own forgotten past.
Sento Kiryu begins his work at the Touto Institute of Advanced Matter Physics, tasked with investigating the enigmatic Pandora's Box. While responding to a possible sighting of a Smash, Kiryu encounters a wanted fugitive.
The hero known as Kamen Rider of Touto is now a fugitive, his actions having aided in the escape of Ryuga Banjo, a man convicted of murder. Kiryu begins to perceive unsettling parallels between the mysterious experiments both he and Banjo …
The search for Ryuga's abductor ultimately points to a man named Nabeshima. Yet, to uncover the truth, Ryuga must journey across the border to Seito.
The enigmas of bygone eras deepen as Sento delves into the aftermath of the Pandora's Box incident. Meanwhile, in Seito, Ryuga and Sawa persist in their quest to locate Nabeshima’s family.
Sento pressed the Owner for information regarding his connection to Faust. Meanwhile, Sawa unearthed a clue pertaining to Sento’s obscured history.
Ryuga discovers the concealed entrance to Faust’s stronghold. Driven by a desire for understanding, Sento learns of the late Katsuragi’s investigations into "Nebula Gas."
Sento and Ryuga must deepen their understanding of Katsuragi and his work. Their destination is Hokuto, but first, they face the challenge of the Sky Wall.
Deep within the secluded city of Hokuto, Sento and Ryuga seek answers. They aim to uncover more about Takumi Katsuragi, turning to his mother for clues and searching for the concealed data of his projects.
Disagreement over the direction of Katsuragi’s research ignites yet another rift between Sento and Ryuga. Meanwhile, spurred by pressure from a benefactor, Faust conceives a scheme to pilfer Pandora’s Box.
While the Prime Ministers of Japan convened, Blood Stark launched an assault on the Touto Institute of Advanced Matter Physics.
As most of his Full Bottles now reside with Night Rogue, Sento unveils his ultimate strategy: a means for Ryuga to operate the Build Driver.
Sawa exposes a link binding together Faust, Nanba Heavy Industries, and the government of Tokyo. Meanwhile, Sento and Ryuga devise a strategy to retrieve Pandora's Box.
Nabeshima’s unexpected summons sets in motion Sento’s scheme to recover Pandora’s Box, presenting him with a valuable opportunity to capture the elusive Blood Stark.
The true nature of Blood Stark is unveiled, and Sento must now work urgently to complete an opposing measure before it is too late.
Having secured Pandora's Box, Sento and Ryuga now pursue Gentoku, determined to expose the connection between the government of Touto and Faust to the wider world.
Gentoku unveils the truth surrounding Sento’s lost memories, a revelation poised to fracture the bond between him and Ryuga.
The forces of Hokuto swept into Touto, their objective the legendary Pandora's Box. With the rising tide of civilian casualties, the government of Gentoku initiated the Kamen Rider program, deploying the masked warriors as instruments of wa…
Before Sento and Ryuga, a newcomer enters the fray of the Rider Wars, wielding a Sclash Driver of his own. Hokuto’s Rider, Grease, has made his appearance.
The latest confrontation between the Touto and Hokuto Riders concludes with Ryuga battling the lingering effects of the Sclash Driver. Blood Stark offers the Hokuto Crows a means of increased power, though such strength comes at a price.
Soichi provides Sento with the instrument to quell Ryuga’s escalating fury—the forbidden Devil's Trigger. Meanwhile, Gentoku lays plans for a retaliatory strike against Hokuto's encroaching forces.
To halt Ryuga’s destructive advance as Cross-Z Charge, Sento finds himself compelled to activate the Hazard Trigger. But what price must be paid for wielding this forbidden power?
The governments of Touto and Hokuto have decreed a contest with a single outcome: possession of Pandora's Box will be determined by a decisive victory. The conflict between Build and Grease will decide the fate of the Rider War.
Sento presented Kazumi with a stark choice: join their cause as Kamen Rider, or face the annihilation of everything he held dear. Meanwhile, a shadowy new foe arrived in Touto, intent on challenging both Sento and Ryuga.
The figure of Kamen Rider Rogue has emerged. Within the confines of the base, Misora succumbs to collapse.
Misora propelled Kamen Rider Rogue violently through the air, towards the towering Skywall. Meanwhile, Souichi confided in Sento, revealing a clandestine presence within the ranks of the Touto government.
The fate of Pandora's Box hangs in the balance as Seito issues a challenge to Touto: a contest to determine its rightful keeper. Meanwhile, Sento dedicates himself to discovering a means of mitigating Black Hazard’s uncontrollable rage.
Deception cost Ryuuga the match, leaving him defeated. Meanwhile, Build and Rogue prepared for their confrontation, unaware that Sawa was approaching, bearing the stolen schematics of Sento’s design.
Rogue intercepts data concerning Build’s Rabbit Rabbit transformation, compelling Sento to activate his own Tank Tank form. Meanwhile, Sawa’s past is unveiled as Kazumi works to evacuate civilians. In a decisive turn, Nanba abandons any pre…
Their assurances ring hollow; Seito presses relentlessly on Touto. The situation deteriorates further with Blood Stark’s completion of the Pandora’s Box panel, and the Skywall begins to subtly alter its position.
Blood Stark finds himself pondering the improbable survival of the Martian Queen. A series of perplexing events unfold as she designates Ryuuga as a beacon of hope.
Sawa and Misora delve into the true history of Ryuuga as Team Build launches a raid on Pandora's Tower, aiming to recover Pandora's Box. Yet, Blood Stark remains a calculated shadow, expertly maneuvering to provoke Ryuuga into decisive acti…
The truth of Ryuuga’s parentage was revealed to him. Simultaneously, Nanba seized Kazumi’s companions, demanding Pandora's Box as their release.
Souichi has taken the Prime Minister of Touto hostage, demanding that Sento deliver the Evol Driver.
Evolt poisons Sento, and then seeks an accord with Ryuuga for the means of a cure.
Having taken control of Ryuuga’s form, Evolt sets his sights on Pandora's Box. Meanwhile, Sento seeks out Gentoku, the only one possessing the final remaining bottles.
Pandora’s Tower is finished, and Evolt prepares to obliterate Earth. Kazumi, still consumed by grief over the loss of his friend, issues a challenge to Gentoku, demanding recompense in battle. Meanwhile, Sento dedicates himself to finding a…
To prevent Evolt from acquiring Pandora's Box, Bernage relocates the café. With Ryuuga unable to transform, he and Kazumi seek assistance from Gentoku in order to save Sento.
The amnesia has taken hold, and Sento is once again the man he once was: Takumi Katsuragi. Meanwhile, Evolt issues a stark ultimatum to Utsumi and the remaining members of the Nanba crew.
Utsumi now embodies the form of Kamen Rider Mad Rogue. Meanwhile, Takumi designs a novel weapon to confront Evolt, harboring a further intention to eliminate Ryuuga.
A shadow of disappointment hung over Kazumi; Evolt had taken the bottles that belonged to his vanished companions. Meanwhile, Sento journeyed to his mother’s home in Hokuto, seeking clarity about his father. Instead of answers, however, he …
Sento receives the startling news that his father is still living. Meanwhile, Sawa embarks on a quest for a single Faust experiment, one that, as far as they know, holds no connection to the Kamen Riders. And Misora learns, with a growing s…
Sento believes Evolt possesses not only the Lost Bottles but also his father, surmising a connection between the two. Evolt intends to achieve his goal of unifying Japan, a pursuit undertaken while Gentoku is consumed by grief for his decea…
Doubt shadows Sento’s allegiance to his father, while Misora enters into an agreement with Evolt.
To elevate their threat assessment, Kazumi and Gentoku deliberately allow themselves to be apprehended. Meanwhile, Sento crafts a new enhancement for Ryuuga's abilities.
Unexpectedly, Evolt lives on, and Sento’s father reveals a hidden detail: a white panel concealed within Pandora's Box.
Evolt makes his presence known. Sento intends to bridge their world with a parallel one using the white panel. Meanwhile, Kazumi requests a new power enhancement.
Kazumi engaged the cloned forms of those he once knew, wielding his new weapon in grim determination. Meanwhile, Gentoku faced a similar onslaught of duplicates, finding unexpected assistance from a most unlikely source.
Kazumi's absence has brought us to the inevitable reckoning with Evolt.
Ryuuga has departed with Evolt. Sento resolves to retrieve him, as the two worlds stand on the precipice of convergence.
