Save me, won't you save me now...
Out of nowhere, you can hear the S.O.S. to the world
Save me, won't you save me now..."
Zero-One Others: Kamen Rider MetsubouJinrai is V-Cinema movie set within the continuity of Kamen Rider Zero-One and the first installment of the Zero-One Others side story.
Taking place after REAL×TIME, ZAIA Enterprise American branch CEO Leon Arkland kidnaps Jin from MetsubouJinrai.net. In the chaos of losing him, the group encounters a large amount of new HumaGear models called "Solds," which are later revealed to also be a new generation of Magia. Leon intends to mass-produce these Solds and sell them worldwide, stirring up some War for Fun and Profit. Naturally, Jin isn't having any of this, and resolves to free them together with his allies.
Yet still, things are not as they seem. Something has clearly happened to Jin while he was in captivity, and Leon plans to unleash a new threat to humanity in a most surprising fashion...
Is followed up by Zero One Others: Kamen Rider Vulcan & Valkyrie.
- The Bad Guy Wins: Zig-zagged. Lyon succeeds in creating an entity that threatens all of humanity using the Massbrain system, his murder at its hands doing nothing to change that. However, Japan's department of defense was never planning on using the Solds to stop whatever came out of the incident anyways, so half of his plans died with him.
- Be Careful What You Wish For: With a heavy dose of Evil Is Not a Toy and Gone Horribly Right. Lyon's plan was creating a "villain" that will pose a threat to humanity once more in the form of Kamen Rider MetsubouJinrai and used that as an excuse to mass-produce Sold HumaGears for the sake of "unwavering justice" and gaining total dominance within the military market. Sure enough, it backfired spectacularly on him as not only is said "villain" too much for him to handle and got him killed in the process but will also be readily handled without him or the Solds, both doomed to be forgotten as failures.
- Bittersweet Ending: Lyon is stopped and the Solds liberated. However, MetsubouJinrai.net is trapped inside the Massbrain network and their original bodies destroyed, being continuously tortured to power the Rider of the same name, and it plans to destroy everything related to them and ZAIA. Yet still, A.I.M.S., no longer being pressured by Lyon, will be ready to free them.
- The Chains of Commanding: At the end of the film, it's revealed that Japan's department of defense never wanted to use the Solds, but were essentially forced to do so by Lyon, who was using their relationship with the USA as leverage. With him out of the picture and the Solds freed, they're free to consult A.I.M.S. once more.
- Create Your Own Villain: The creation of Kamen Rider MetsubouJinrai turns out to be a disaster as rather than being a Mind Hive acting in unison, the Rider is instead an unrecognizable Hive Mind that decides to kill its creators/users and completely and utterly obliterate both sides of the movie's conflict no matter the cost.
- Demoted to Extra: Gai only has two minutes of screentime in the film, asking Lyon why he had to steal the Thousandriver to make Kamen Rider Zaia. Before he can make any meaningful remarks towards him, though, Sold20 chokes Gai out long enough for Lyon to make his leave.
- Deus Exit Machina: It was convenient for Aruto to be working on a new satellite the moment Lyon moves in.
- Dual-Meaning Chorus: "S.O.S." in both the title and chorus (which serves as the page quote) can refer to both Jin being kidnapped by ZAIA to kickstart the film's plot and MetsubouJinrai imprisoning its users within itself at the film's end.
- Foreshadowing: The film's poster shows MetsubouJinrai holding Horobi's katana above its users, hinting at the means in which it seals off their means of escape after transforming a second time.
- History Repeats: Once again, a ZAIA CEO uses MetsubouJinrai.net as an excuse to sell their mass-produced weapons as part of their Engineered Heroics, just like Gai did with Raiders. Japan's government say it's an acceptable choice since there will be less human casualties, but actually are pressured by ZAIA's connections with USA government and wanted to reject the idea to begin with.
- Lyrical Dissonance: "S.O.S." is an upbeat and hopeful-sounding song, as is tradition with many Rider V-Cinemas ending themes. It's really about MetsubouJinrai.net crying out for help after being held hostage and presumed dead in the creation of Kamen Rider MetsubouJinrai.
- Put on a Bus: To remove Aruto from the movie's narrative, he's sent into space with Subaru to install a replacement satellite for Zea shortly before the story begins.
- Shoo Out the Clowns: The more comical characters Aruto, Is and Gai have little to no screen time, the equally comical Fuwa is all business this time around and Jun and Sanzo the shows comic relief duo didn't appear in the movie. The tone of the movie is much more somber as a result.
- Wham Line: After MetsubouJinrai kills Lyon despite protests from Fuwa, the latter angrily tries to reason with it. It doesn't seem to hear him, and simply says one line that immediately reveals its true agenda, much to Fuwa's shock:MetsubouJinrai: MetsubouJinrai will be extinct.