What Is Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai About?
The premise of Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai in 256 words, with nothing given away. The full story follows below.
In a world where the line between past and future blurs, the legendary Kamen Riders of the Showa era meet their modern Heinei counterparts, sparking a clash of ideals, powers, and memories. The streets of a bustling city become a battlefield for two generations of heroes, each carrying the weight of their own history while confronting a threat that seeks to turn everything upside‑down. The tone balances high‑octane action with a reverent nod to the legacy that has defined the franchise for decades.
Amid the chaos, Kouta and his steadfast ally Mai find themselves drawn into the underground depths, where an enigmatic boy named Shu possesses the uncanny ability to invert reality itself. Their encounter hints at a deeper mystery, as the young boy’s power becomes a focal point for both the seasoned Riders and the shadowy forces working behind the scenes. The mood is charged with curiosity and tension, the air humming with the promise of unseen forces reshaping the world.
The hidden menace of the Underground Empire Badan looms large, its aim to reverse the very fabric of existence providing a dark counterpoint to the Riders’ bright resolve. This looming danger forces alliances to be tested and new bonds to form, as heroes from different eras must decide whether their differences will divide them or forge a stronger front against an unknown inversion. The film’s atmosphere is a blend of nostalgic homage and fresh excitement, inviting viewers to wonder how these iconic figures will navigate a reality that threatens to unmake everything they know.
What Happens in Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai?
The complete story of Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai, from the first scene to the last, in 1,048 words (about 5 minutes). Spoilers throughout.
Spoilers ahead
The film opens with Zawame City torn apart by a brutal clash between the Heisei Riders and the Shōwa Riders, a cataclysmic showdown that shakes the present and sends the audience back to the week prior. As rumors swirl about a mysterious underground force, Kota Kazuraba [Gaku Sano] investigates the area with his friend Mai Takatsukasa [Yuumi Shida], only to tumble into a hidden chasm that drops them into an alternate, underground version of their city. There they meet a boy named Shu [Shun’ya Shiraishi], who possesses the uncanny ability to revert objects and events, yet cannot recall why his power matters.
Kota and Mai drag Shu back to the surface, where Takeshi Hongo [Hiroshi Fujioka] makes a sudden appearance, demanding the boy be handed over. The relief is short-lived, as Harbingers from the Underground Badan Empire descend and kidnap Shu themselves. In the ensuing chaos, Takeshi transforms into Kamen Rider One to enable Kota, Mai, and Shu to escape. The surface erupts in battle as Armored Riders Baron, Ryugen, and Zangetsu Shin join the fray, with Kota stepping forward as Armored Rider Gaim to shield his friends. Yet Gaim’s advance is halted when Kamen Rider Fifteen arrives, wielding a Lockseed that unlocks the powers of the fifteen Heisei Riders, forcing a confrontation as One, Two, and V3 appear to intervene. In a desperate bid to flee, Shu uses his powers and escapes with Gaim and Mai.
The trio seeks refuge at Drupers, where Tsukasa Kadoya and Narutaki appear, urging that all fifteen Heisei Riders unite to halt Badan’s plans. Narutaki warns that begging for Shōwa Rider aid would be futile. Tsukasa embarks on a mission to rally the other riders alongside Kaito Kumon, while Kota stays behind to care for Shu. The first contact is Shotaro Hidari, who refuses to help until he finishes a lingering job—tracking down some lost pets. Tsukasa leaves Kaito to assist Shotaro and reaches out to Takumi Inui, who likewise refuses, insisting his days as a Rider are over. Kamen Rider Fifteen materializes and assaults them, prompting Tsukasa to transform into Kamen Rider Decade to fend him off, allowing Takumi and Tsukasa to slip away.
In a ramen shop, Takumi intervenes when a wounded runaway holds Mari hostage. Keisuke Jin arrives to heal the wounded man and convinces him to surrender to the police, after which Takumi accompanies Jin to his clinic. There, Jin tends to another patient and helps Takumi confront the lingering guilt over Masato Kusaka’s death, encouraging him to stay at the clinic for a while.
The next day, Badan’s forces strike again. To protect Mari, Takumi reenters the field as Faiz and defeats the attackers, but Jin reveals himself as X and claims Takumi must find resolve on his own. Meanwhile, Tsukasa finally persuades Shotaro to hear him out and asks about Shu. In a poignant turn, Shu finally remembers his past and leads Kota to his home, where it’s revealed that Shu has been dead all along. Before Shu’s death, he argued with his mother and now longs to see her one last time. Kamen Rider Fifteen reappears to take Shu away, and Kota learns that Ren Aoi, Shu’s father, is the Rider’s true identity. Ren reveals that Badan intends to power a machine called the Mega Reverse, which can resurrect the dead at the expense of the living.
As the two worlds collide, Kamen Riders Gaim and Decade duel Fifteen while, elsewhere, the Shōwa Riders converge with the Heisei Riders. Decade rescues Shu and ferries him toward his mother, yet General Jark blocks the way. The Shōwa Riders, assisted by Black and Black RX, are temporarily repelled by Shotaro’s Joker, allowing Tsukasa to continue escorting Shu. Kamen Rider Baron lends support to the Joker squad as Tsukasa guides Shu to a lighthouse where his mother awaits. But Fifteen closes in, devastating the standstill duo with the power of the Heisei Rider Lockseed.
Back in the present, the Shōwa and Heisei Riders clash as the Shadow Line’s General Schwarz aligns with Badan and attacks Kamen Rider Den-O’s Den Liner. Kota, Tsukasa, and Takumi join forces with the remaining Heisei Riders to confront the Shōwa Riders and understand their motives. One explains that the Heisei Riders’ attachments to their deceased loved ones fed Badan’s rise and the appearance of Fifteen. Ambassador Darkness, the Badan leader, is revealed to be Ryo Murasame, who infiltrated the group to sabotage it from within. He betrays the organization, but the Mega Reverse Machine is revealed to be Badan’s base, which lifts into the sky.
Ryo summons the other Rider allies back from Helheim Forest to support him and Gaim, and the Heisei-Shōwa alliance presses on. The combined forces face a colossal threat: a giant Badan Generalissimo monster. Daigo Kiryu of the Kyoryugers arrives with Gabutyra, but the beast proves formidable. The ToQgers and Kamen Rider Den-O arrive, combining their trains with Gabutyra to form ToQ-Oh Kyoryuzin feat. DenLiner and destroying the Generalissimo. As Decade rescues Shu from the Mega Reverse Machine, Haruto Soma [Shun’ya Shiraishi] and Jin prepare to destroy the machine for good, but Takumi seeks a chance to revive Masato. The three Riders persuade each other that destroying the Mega Reverse is the correct course, and together they shatter it as Wizard, X, and Faiz.
In the climactic moment, One bestows upon Gaim a special Lockseed containing the powers of the fifteen Shōwa Riders, enabling him to transform into One Arms and decisively defeat Fifteen, who regains his senses. With the Badan Empire nearly defeated, the Shōwa Riders assist in reuniting Shu with his parents one final time before sending him on. They then bid farewell to the Heisei Riders, prepared to return to their own realm, leaving the Heisei Riders to wonder if they can protect Earth without their Shōwa counterparts. The decisive act comes when Gaim, sacrificing nothing, shields a lone flower from One’s Rider Kick, prompting One to acknowledge the virtue in such kindness and prompting a heartfelt reconciliation between the two worlds as they part ways.
An alternate ending offers a different sacrifice: Gaim contemplates a powered-up strike against One, but halts, recognizing the risk of a preemptive attack. One commends this restraint, and the Shōwa and Heisei Riders find their paths toward reconciliation as well.
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai Timeline: Every Key Event in Order
15 key events in the order they happen, from “Clash in Zawame City tears the world apart” to “One Arms triumph and reconciliations; alternate ending”. 15 events name a place, across 12 locations.
- 1
Clash in Zawame City tears the world apart
A brutal battle erupts between the Heisei Riders and the Showa Riders in Zawame City, shaking the present and sending the audience back a week. The shockwave opens a hidden chasm that drops Kota and Mai into an underground version of their city. There they meet Shu, a boy who can reverse objects and events, though he cannot yet recall why his power matters.
Where:Zawame City
- 2
Kota and Mai meet Shu and learn about his power
On their way back to the surface, Kota and Mai meet Shu, a boy who can reverse objects and events. Shu struggles to understand why his power matters, adding mystery to the looming threat. This underground encounter hints at a larger fate tied to the underground world.
Where:Underground city
- 3
Badan kidnaps Shu; rescue on the surface
Harbingers from the Underground Badan Empire descend and kidnap Shu, escalating the crisis. Takeshi Hongo arrives as Kamen Rider One to help Kota, Mai, and Shu escape. The surface erupts into battle as Armored Riders Baron, Ryugen, and Zangetsu Shin join, with Kota stepping forward as Gaim to shield his friends.
Where:Surface
- 4
Fifteen appears and awakens the Heisei Riders
Kamen Rider Fifteen arrives bearing a Lockseed that unlocks the powers of the fifteen Heisei Riders, prompting a major confrontation. In response, One, Two, and V3 materialize to intervene against Fifteen.
Where:Surface
- 5
Drupers refuge and calls for unity
Kota, Mai, and Shu seek refuge at Drupers, where Tsukasa Kadoya and Narutaki urge the Heisei Riders to unite against Badan. Narutaki warns that begging for Showa Rider aid would be futile.
Where:Drupers
- 6
Tsukasa rallies reluctant Riders
Tsukasa begins to rally the reluctant Riders, aided by Kaito Kumon. Shotaro Hidari is hesitant, and Takumi Inui insists his days as a Rider are over.
Where:Drupers
- 7
Fifteen strikes again; Decade intervenes
Fifteen materializes once more to attack the group, prompting Tsukasa to transform into Decade to fend him off. Takumi and Tsukasa slip away, avoiding capture.
Where:Drupers vicinity
- 8
Ramen shop rescue; Jin offers guidance
In a ramen shop, Takumi intervenes when a wounded runaway holds Mari hostage. Keisuke Jin arrives to heal the wounded man and urges surrender to the police, revealing a path toward Takumi’s own resolve. Jin later tends to another patient at his clinic.
Where:Ramen shop / Jin's clinic
- 9
Takumi returns as Faiz and Jin reveals X
The next day Badan’s forces strike again, and Takumi reenters the field as Faiz to protect Mari. Jin reveals himself as X and urges Takumi to find his own resolve on his own.
Where:Field
- 10
Shu’s memory returns and the truth about Shu
Shu remembers his past and leads Kota to his home, where it’s revealed that Shu has been dead all along. Before Shu’s death, he argued with his mother and longed to see her one last time. Kamen Rider Fifteen reappears to take Shu away, and Kota learns that Ren Aoi, Shu’s father, is Fifteen’s true identity.
Where:Shu's home
Show the other 5 events of Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai Hide the last 5 events
- 11
The Mega Reverse plan revealed
Ren reveals that Badan intends to power a machine called Mega Reverse to resurrect the dead at the expense of the living. He confirms Fifteen’s true identity and the gravity of Badan’s scheme.
Where:Underground Badan base
- 12
Two worlds collide; rescue efforts near the lighthouse
As the worlds collide, Gaim and Decade duel Fifteen while Showa Riders converge with the Heisei Riders. Decade rescues Shu and ferries him toward his mother, though General Jark blocks the way. The Showa Riders, aided by Black and Black RX, are temporarily repelled by Joker, allowing Tsukasa to continue escorting Shu toward a lighthouse where his mother awaits. Fifteen closes in and devastates the standstill duo with the Lockseed’s power.
Where:Lighthouse
- 13
Ryo Murasame betrays Badan; Mega Reverse lifts
Back on the present, Showa and Heisei Riders clash as Schwarz aligns with Badan and attacks Kamen Rider Den-O’s Den Liner. Kota, Tsukasa, and Takumi join the last stand and learn that Ambassador Darkness is actually Ryo Murasame, who infiltrated Badan to sabotage it. The Mega Reverse Machine emerges and lifts into the sky, signaling a final showdown.
Where:Battlefield
- 14
Final alliance defeats Generalissimo; Shu’s fate
Ryo summons allies from Helheim Forest to bolster the last assault as a giant Badan Generalissimo monster looms. Daigo Kiryu arrives with Gabutyra, and ToQ-Oh Kyoryuzin joins with DenLiner to destroy the Generalissimo. Decade rescues Shu from the Mega Reverse and they begin to destroy the machine with help from Haruto and Jin as Takumi contemplates Masato’s revival.
Where:Battlefield
- 15
One Arms triumph and reconciliations; alternate ending
In the climactic moment, One bestows upon Gaim a special Lockseed containing the powers of the fifteen Showa Riders, enabling him to transform into One Arms and decisively defeat Fifteen. With Badan nearly defeated, the Showa Riders reunite Shu with his parents and say farewell to the Heisei Riders as they return to their own realm. An alternate ending shows Gaim restraining a preemptive strike, and both worlds begin to seek reconciliation.
Where:Final battlefield
Who Are the Main Characters in Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai?
9 characters, among them Haruto Soma / Kamen Rider Wizard (Shunya Shiraishi), Kota Kazuraba / Kamen Rider Gaim (Gaku Sano) and Mai Takatsukasa: who each one is and the part they play in the story. Every profile links to the actor’s page.
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Haruto Soma / Kamen Rider Wizard (Shunya Shiraishi)
Played by Shun'ya Shiraishi
A Heisei-era Rider who intervenes to protect Shu and helps Kota, Mai, and Shu escape. He serves as a moral anchor and a bridge between the two worlds, guiding others toward unity against Badan.
- ⚡ Hero
- 🛡 Ally
- 🧭 Mentor
- KK
Kota Kazuraba / Kamen Rider Gaim (Gaku Sano)
Played by Gaku Sano
A central figure who steps forward as Armored Rider Gaim to shield his friends. He embodies resolve under pressure and becomes a focal point for uniting the Riders against the threat.
- ⚔️ Leader
- 🛡 Protector
- 🗡️ Fighter
- MT
Mai Takatsukasa
Played by Yuumi Shida
Kota’s ally who accompanies him and supports Shu. She acts as a steady presence for the group, offering practicality and courage amid the chaos.
- 💞 Friend
- 🧭 Ally
-
Shu
Played by Shun'ya Shiraishi
A mysterious boy with the power to revert objects and events, yet unable to recall why his power matters. His memory gradually returns, revealing a hidden fate and his disputed status, which drives the story’s emotional core.
- 🧭 Power
- 💔 Vulnerable
-
Ren Aoi / Kamen Rider Fifteen
Played by Itsuji Itao
Shu’s father and the Rider Fifteen, a complex figure who wields a Lockseed and catalyzes conflicts within Badan. His actions push the Riders toward a larger, higher-stakes plan and reveal deeper loyalties.
- 🗡️ Villain
- 🧭 Ambition
- TK
Tsukasa Kadoya / Kamen Rider Decade
Played by Masahiro Inoue
A rallying presence who seeks to unite the Riders from different eras. He transforms into Decade to counter Fifteen and play a pivotal role in coordinating the cross-era alliance.
- ⚔️ Leader
- 🧭 Connector
- TI
Takumi Inui / Kamen Rider Faiz
Played by Kento Handa
A seasoned Rider who initially resists a return to action but ultimately re-enters the fray to confront Badan’s forces. His path mirrors the themes of duty and self-discovery.
- 🛡 Veteran
- ⚔️ Warrior
- KK
Kaito Kumon / Kamen Rider Baron
Played by Yutaka Kobayashi
A capable Rider who joins the effort and supports Tsukasa’s mission. He adds to the coalition of Riders from different eras working together.
- ⚡ Ally
- 🗡️ Fighter
- M
Mari
Played by Ai Miyoshi
A friend connected to Shu and Kota who becomes entangled in Badan’s machinations. Her presence grounds the team and she endures danger alongside the Riders.
- 💞 Friend
- 🛡 Survivor
Where and When Is Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai Set?
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai is set in Zawame City and Underground Zawame City (Present day, with a flashback to the prior week). Here is why the time and place matter to the story.
When
Present day, with a flashback to the prior week
The narrative unfolds in a modern setting, repeatedly shifting between the current day and a week earlier. This time-bending crossover brings together Riders from different eras, forcing characters to confront altered memories and altered fates. The fusion of Shōwa and Heisei timelines drives the urgency of the mission and the stakes of every choice.
Where
Zawame City, Underground Zawame City
The film centers on Zawame City, a contemporary urban hub where the Heisei and Shōwa Riders clash. An ominous underground chasm reveals a hidden, alternate version of the city controlled by the Badan Empire, a shadowy realm that can rewrite events. Surface and subterranean environments collide as heroes race to protect Shu and thwart Badan’s plans.
- 🏙️ Urban
- 🗺️ Underground
- 🌆 City in peril
What Are the Themes of Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai?
3 ideas the story keeps returning to, among them Time Unity, Sacrifice and Memory & Identity.
-
01
Time Unity
Two eras collide as Shōwa and Heisei Riders join forces to face a common foe. Time acts as a bridge rather than a barrier, allowing characters to rekindle old loyalties and form new alliances. The story suggests that shared ideals and friendship can transcend decades and differences.
-
02
Sacrifice
Sacrifice threads through pivotal moments, with Riders risking power and life to protect others. Key choices—whether to destroy a dangerous machine or shield the vulnerable—emphasize mercy and restraint alongside courage. The narrative champions selflessness as the truest form of strength.
-
03
Memory & Identity
Memory drives the drama, revealing hidden family ties and past traumas. The uncovering of Shu’s history and the revelation of true identities test characters’ sense of self and loyalty. The film explores how memory, history, and belonging shape who we become.
What Kind of Film Is Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai?
Tense in tone, with fast pacing and a moderate story, going by the plot summary.
- Tone
- Tense
- Pacing
- Fast
- Story
- Moderate
- Intensity
- High
- Ending
- Bittersweet
A fast-paced, high-stakes crossover event filled with constant action and tense confrontations, balanced by a poignant emotional core about loss and the bittersweet cost of heroism.
- tense
- epic
- nostalgic
- melancholic
- heroic
- chaotic
- alternate reality
- resurrecting the dead
- clash of generations
- heroic sacrifice
Content notes: child endangerment, large-scale destruction.
Quiz
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