- Written by Yuya TakahashiDirected by Teruaki Sugihara
Japan has entered a new era. The HumaGears, AI-controlled robots with human-like appearances, have entered the society as workers. The HumaGears are developed by a giant technology corporate, Hiden Intelligence, lead by the late Korenosuke Hiden. The news are reporting said president's death and ceremony when a young man is speeding through the street with an old bicycle.
The young man, Aruto Hiden, is on an appointment with a local amusement park. He's booked there as a comedian, but his jokes are so lame and thus he is fired. The theme park manager tells Aruto that his job is taken by a HumaGear, Gut-Busting Taro, that manages to make everyone laugh. The manager also explains that nowadays, people are preferring HumaGears at certain jobs.
At Hiden Intelligence's HQ, Jun Fukuzoe, the vice president, is preparing for his ascension as the new president. He commands that Korenosuke Hiden's picture on the lobby to be changed into his picture, and immediately asks for an executive meeting.
Meanwhile, at Daybreak Town, two mysterious guys are discussing about Korenosuke Hiden's death and start their Magia plan. The leader, Horobi, sends his underling, Jin, with a Zetsumerise Key. Horobi exclaimed that the time of Humanity turned into an endangered species is at hand.
On the communication satellite Zea, the machine starts to develop the Hiden Zero-One Driver and reactivates Izu, Korenosuke Hiden's secretary HumaGear. Izu says that her mission is finally starting as per BS-ZA protocol, and departs.
Back in the theme park, Aruto is lamenting about his lost job when a luxury car approaches him. Izu comes out from the car and asks the young man to go with her as per his grandfather, Kurenosuke Hiden's will. Aruto is brought onto Hiden Intelligence's executive meeting and given his late grandfather's will. Aruto is shocked after reading the will, and Jun Fukuzoe takes the will out of his hand. The vice president read the will and reveals that the company is going to fight a threat of HumaGears' revolting against humanity. To fight the threat, the Hiden Zero-One Driver is developed, but it can only be utilized by the succeeding president... which is Aruto Hiden!
Jun Fukuzoe and the entire board of directors are angered at this sudden development. But, Aruto actually doesn't want to accept this appointment, as his dream is to become a comedian. Aruto then excuses himself out of the meeting. When he's going out, he reminisces about his childhood with a HumaGear designed with the likeliness of his father, Soreo Hiden. But, tragedy struck and his robotic father is destroyed, but not before he told young Aruto to chase his dream to make people laugh.
In the theme park, Gut-Busting Taro is on a break, silently smiling as he looks back at how how his recent performance got the crowd laughing and happy. Suddenly Jin appears and force the ZetsumeRiser onto him, saying that they're now 'friends' and that he needed to go attack the people outside now. Taro struggles to resist, stating that his duty is to make humans laugh. Jin gently tells the resisting Taro that his mission is to make humans extinct, as an alien protocol successfully rewrites his original protocol. A hacked Taro then appeared on the stage and inserting the Berotha Zetsumerise Key into his ZetsumeRiser, changing him into Berotha Magia. The Magia went berserk and attacking civilians, even infecting the HumaGears around him, corrupting them into Magias. A.I.M.S. personnel are immediately summoned into the park, with Isamu Fuwa and Yua Yaiba on command. Fuwa, without Yua's consent, begins to fight the Magias mercilessly.
Aruto, that went back to the park before, tries to stop Berotha Magia but he's beaten senseless. When the Magia says that human's dreams are meaningless, Aruto finally stand up to fight and asks the newly arrived Izu for the Zero-One Driver.
Aruto equips the Driver and his mind is uploaded into the communication satellite Zea. Inside, his mind's processing speed is accelerated to the level of A.I.s, so he can finish the Driver's Tutorial Mode in 5 seconds. Aruto then transform into Kamen Rider Zero-One Rising Hopper and rushes Berotha Magia.
As the battle rages on, Jin who watches the fight is attacked by an erroneous Magia. But he easily dispatch it with his handgun. Zero-One then proceeds to destroy the Magia henchmen with his Attache Calibur, despite the weapon rough delivery by Izu. Zero One finally destroy Berotha Magia with Rising Impact finisher after a lengthy battle. But he also sprained his ankle after the finisher. Meanwhile, Isamu takes out the unfinished ShotRiser, much to Yua dismay to end A.I.M.S' battle, while wondering if the past Magia incident is starting again.
Jin returns to Daybreak Town and tells Horobi about Kamen Rider Zero-One. Horobi is intrigued, and he inserts the destroyed Berotha Zetsumerise Key into his machine for analyzing. He declares his group as Metsuboujinrai.NET and reclaims that their goal is to make humanity extinct.
Aruto is happy that he saved the amusement park, until Izu reveals that by accepting the Zero-One Driver, he also accepts his new position as the president of Hiden Intelligence. Izu gives Aruto the RisePhone as his ID Card, and they departs to the company's HQ. As they head off, Aruto can't help but crack a joke involving the phone and ID card, leading to Izu explaining the joke to herself, despite Aruto's dismay.
- Activation Sequence: After Korenosuke's funeral, Izu goes online in his office, as well as the 3D printing machine that uses the uplink from the Hiden satellite to create the Zero One Driver.
- Amusement Park: Giggle Land, the place Aruto was fired from his role as a comedian. Berotha Magia's rampage turns it in a Amusement Park of Doom.
- News Broadcast: The episode, and the series as a whole, starts with a news broadcast about Korenosuke Hiden's funeral.
- Not Quite Dead: No, the Berotha Magia was definitely Killed Off for Real. The Berotha Zetsumerise Key it used to transformed, while badly damaged, was recovered by the bad guys for later use.
- Painful Transformation: The hacked HumaGear comedian that becomes the Berotha Magia has his skin burn off, before its face opens up to stab itself with multiples of green, metal sticks to become it.
- Stab the Scorpion: When Isamu breaks the emergency glass and gets the A.I.M.S. Shot Riser, Yua berates him as its not ready yet. In response, Isamu seemingly fires at her, only for it to hit the hacked HumaGear behind her.
- Stepping Stones in the Sky: Zero One does this on cars that are blown away by Berotha's attacks.
- Unexpected Inheritance: Neither Aruto or the entirety of Hiden Intelligence board were expecting the former to receive anything, let alone the position of CEO. Not to mention the whole Robot War part of it...
