In alternate moment of the series timeline, set in the near future, Smart Brain has accomplished its goal of world domination — with 90% of Earth's population being Orphnochs while the human race had diminished to near-extinction. Takumi Inui, the user of the Faiz Gear, was regarded as mankind's savior until he was presumed killed during an attack by Smart Brain's Riotroopers. Since then, his friend Mari Sonoda has formed a human resistance group that have staged attacks on Smart Brain's headquarters in an attempt to steal the top-secret "Emperor Belts," but to no avail. The Orphnochs Yuji Kiba, Naoya Kaido and Yuka Osada wish to see both Orphnochs and humans co-exist in peace, but they are not taken kindly by the humans while Smart Brain chief Kyoji Murakami (who is now reduced to a head in a water tank) reminds them that humans no longer have a place on Earth. Murakami then discloses the existence of the Emperor Belts by introducing the Orphnoch Leo, who changes into the powerful Kamen Rider Psyga.
Four years after an alternate ending to the series, in which Blade seals the Joker, the characters have moved on with their lives: Kenzaki is a garbage man which in comparison to the chaos he went through was a huge change of pace, Mutsuki has graduated high school, and Kotarō has published a book about the Kamen Riders to great success, but on Amane's upcoming birthday, it was revealed that she has become a delinquent without the emotional support of Hajime. The Undead have been re-released, and a new trio of Kamen Riders—Glaive, Larc and Lance—have emerged from BOARD, now led by Tachibana. After recapturing two of the Category Aces, Kenzaki and Mutsuki join with the new Riders. When all the Undead are sealed once more, Glaive reveals himself to be the Albino Joker, a white version of the original Joker, and captures Kotarō's niece to obtain the ultimate power, sealing her in the Vanity Card. In order to free Amane from the card, Hajime is unsealed from the Joker Card and the four Riders are again united, intent on saving Amane and stopping the Albino Joker. In the end, Hajime swaps his life for Amane in the Vanity Card and allows himself to be destroyed by Blade to weaken Jashin 14. Blade uses his King Form to cut Jashin 14 in half, putting an end to the Undead.
Les aventures d'un sympathique gaillard d'un petit village qui doit gagner l'amour d'une fée. Durant ses pérégrinations, il sera accompagné de trois lutins qui personnifient le Bien, le Mal et la Gaîté...
While in the middle of fighting, the Gekirangers and Mere are teleported to Hong Kong, along with Rio and various other martial artists around the world. Just as Rio and Jyan were about to fight, they meet the mysterious Lao Fan before seeing others brought to the island as well. They all then meet Miranda, the secretary to Yang, a media mogul who brought them all together for the Kenkonitteki Martial Arts Tournament (乾坤一擲武術会, Kenkonitteki Bujutsukai) to prove who's the strongest of them all. The first round of fighting leaves the Gekirangers, their Rinjūken rivals, Lao, Barnard Koyama, and Big the Goto as the winners. At the banquet hall, Ran, Retu, Rio, and Mere meet Yang Lo himself while Jyan follow Lao Fan and learns she's actually a member of the Hong Kong police who is investigating Yang, who founded Mechung Fu and used his tournament to gather strongest fighters as part of his plan to rule the world, finding the ideal Ki he needs: from the Jūken users. Geki Blue, Geki Yellow, Rio, and Mere attempt to fight off Miranda as Yang takes his leave, finding Jyan and Lao in his base of operations before they restrained him. However, the Ki Miranda collected before she died transfers to Yang's computer, transforming Yang into a cyborg Beastman before he starts absorbing more Ki to become a supreme being. The Gekirangers battle Yang Lo, refusing to give up in spite of him being stronger than them. Evading his defeat, Yan activates his giant robot Mechannon to terrorize the city. When GekiTohja proves no match for Mechannon, Rio and Mere take offense to Yang's comments on the Jūken style and are forced to help the Gekirangers by summoning RinLion and RinChameleon to combine with GekiTohja to form GekiRinTohja to destroy Mechannon, killing Yang in the process. Once the fight is over, in spite of the Gekirangers' amazement at the power of the united Jūken schools, Rio takes his leave with Mere telling them that nothing changed between them. The next day, Lao thanks the Gekirangers as they were about to leave for Japan when Miki, Natsume, and Xia Fu arrive for a vacation in Hong Kong.