Kamen Rider Build: Be The One

is a Japanese superhero film that serves as the summer movie adaptation of Kamen Rider Build, double billed with . In the film, Sento must find a way to retake his home after the Blood Tribe has turned his friends and allies against him. The film's epilogue features an early-bird appearance of Kamen Rider Zi-O ahead of his in-series debut. 
The catchphrase for this film is 
==Synopsis==
Set after the events of the Japanese Civil War, the newly appointed governors of Seito, Hokuto and Touto now support each other in their mission to reunify Japan, however they are secretly members of Evolto's home clan known as the Blood Tribe, who each have assumed government positions in order to take over the entire world. Being certain that Sento Kiryu/Kamen Rider Build is a major threat to their plans, they proceed with their to manipulate Sento's friends and other civilians against him. With Ryuga Banjo now against him, Sento must find a way to fight and survive as he hunts for the truth to stop the Blood Tribe in succeeding with their ultimate plan.
==Plot==
The movie begins with a POV shot of the Pandora Box being released and the walls going up, it appears to be from Sento’s eyes and his father telling him to get somewhere safe. Quick cuts to present day with a public conference of the unification of Seito, Hokuto, and Touto and the designation of a governor for each region with the Pandora Tower at its center. Sento is complaining about the heat while riding his bike on the phone to Sawa and Misora. He comes across a brother and sister being attacked by two Smash. He transforms and fights before the screen cuts back to a new character, Kengo Ino, at the press conference, saying that the time for peace to come, and Kamen Riders must become extinct. The crowd then chants extinction. He uses his ability to manipulate the civilians who fell silent and begin walking off different directions, entirely noiseless. Build defeats the two Smash when groups of civilians appear, charging at him and engulfing him.
He manages to sneak out of the crowd and is chased throughout town, even getting back to the Cafe and is attacked by Sawa and Misora. He releases some gas in the lab and hides in the Fullbottle purification machine until they’re knocked out.
The three governors have a meeting with Evolto and were reveal to be the Blood Tribe, survivors of the same race as Evolto who aim to destroy the planet and consume it. It is also revealed that they had been acting in the shadows ever since the Sky Wall appeared and manipulated each territory during the war until Evolto changed his mind and their plans were disrupted. Evolto tells them he won’t interfere but reminds them he has the upper hand with the power of the Pandora Box.
Ryuga is picked up in a limo after visiting his girlfriend’s gravestone. Mitsuomi, the Zebra Lost Smash, appears in the limo, causing Ryuga to jump out from the car, and both of them transform and fight. Mitsuomi reveals that he was the one who ordered Kasumi to be turned into a Smash. Ryuga loses the fight and becomes controlled like the other civilians.
Sento infiltrates a lab and discovers that the three governors are the other astronauts from the Mars mission. He is discovered and chased again by civilians before running into Kazumi and Gentoku, who transform to help hold them for Sento to escape. Ryoka appears before them and transforms into the Scissors Lost Smash. Sento gets away as Kazumi and Gentoku are captured. Sento then meets the mind controlled Ryuga and Kengo. After fighting, Ryuga beats Sento and takes the Hazard Trigger. Kengo absorbs Ryuga along with the Scissors and Zebra Lost Smash, then uses the Hazard Trigger, Cobra Lost Fullbottle, and Great Cross-Z Dragon with Ryuga's Build Driver to become Kamen Rider Blood. He easily defeats Sento, but before he can deal the final blow, Evolto appears and takes Sento away.
Sento wakes up on a boat with Soichi in the rain. They talk and Sento leaves, visiting the alley where Evolto pretended to find him without his memories. In his mind, Sento talks with Takumi about the events leading up to this point. This includes the fact that the Rider System was one of the biggest causes of the war, which is a thought Sento keeps struggling with. Takumi argues that to win, Sento has to kill Ryuga, which Sento disregards.
Later, Utsumi offers to break Kazumi and Gentoku out of captivity if they beg. Kazumi refuses, but Gentoku gives in. Kengo contacts Sento and demands the Pandora Box in exchange for Ryuga’s life. Ryuga, Kengo, Mitsuomi and Ryoka are outside, surrounded by civilians under their control. Sento arrives on his bike with the Pandora Box. Kengo becomes Kamen Rider Blood and Sento transforms into Build Genius Form. Kengo reveals that his encounter with Ryuga was orchestrated. They fight and Sento recalls one of Takumi's memory's in which his father told him that Ryuga holds the key to all the events to come. Takumi then asked why he became a scientist and his father replied "For love and peace". Sento manages to pull Ryuga out of Blood. Blood takes the Pandora Box down into the ground, heading for the center of the Earth so that he can destroy the planet. Gentoku and Kazumi appear and fight the Scissors and Zebra Lost Smash. Misora uses her powers to free Ryuga from Kengo’s control. The Gold Rabbit and Silver Dragon Fullbottles then fuse into the Cross-ZBuild Can. Sento and Ryuga uses it to transform into Build Cross-ZBuild Form.
They head down to fight Blood, and while they initially struggle to control their new form, they force Blood back to the surface and defeat him with the Love & Peace Finish. Kazumi and Gentoku win their respective battles. The humans under the Blood Tribe's control forget about what happened and Sento is a bit disappointed that no one knows what they went through.
In a post-credits scene, Sento is working on the White Pandora Box panel when it suddenly opens up a portal that engulfs him. He is teleported to an outside location and overhears fighting over the side of a cliff. All of the Heisei Riders are there fighting their respective final villains. Zi-O arrives in and then exits out the Time Mazine. Sento begins to see Zi-O's helmet starting to pronounce from his insignia and then his eyes. Sento and Zi-O briefly talk and Zi-O comments how he already has Build’s power. He uses the Build Ridewatch and jumps off the cliff, transforming mid-fall. He fights the villains before using the Vortex Time Break.http://tokusatsunetwork.com/2018/08/kamen-rider-build-and-lupinranger-vs-patranger-summer-film-summaries/
==Continuity and Placement==
*Kamen Rider Build: The film takes place between 45 and 46.https://www.toei.co.jp/tv/build/story/1213108_2766.htmlhttps://twitter.com/toei_riderBUILD/status/1020828001812922368 The post-credits scene with Zi-O's cameo takes place during the events of episode 46, shortly after the creation of the White Pandora Panel and before Sento's mental conversation with Katsuragi.
*Kamen Rider Zi-O: This film is non-canon to the TV series as Sougo's only interactions with Build are in the first two episodes and Kamen Rider Heisei Generations Forever. Given the White Pandora Panel's involvement in the scene and taking onto account Zi-O's subsequent impact on the Rider multiverse, this may have taken place in an unspecified alternate world or timeline.
==Characters==
===Kamen Riders===
Kamen Rider Build 	Sento Kiryu
Kamen Rider Cross-Z	Ryuga Banjo
Kamen Rider Grease 	Kazumi Sawatari
Kamen Rider Rogue 	Gentoku Himuro
 	Sento Kiryu & Ryuga Banjo
====And Introducing Zi-O====
Kamen Rider Zi-O	Sougo Tokiwa
===Allies===
*Misora Isurugi 
*Soichi Isurugi
*Sawa Takigawa
*Vernage
===Villains===
====Kamen Riders====
Kamen Rider Blood	Kengo Ino
====Lost Smash====
Zebra Lost Smash 	Mitsuomi Gobara
Scissors Lost Smash	Ryoka Saiga
===Other===
Kamen Rider Evol 	Evolto
Kamen Rider Build (Prototype)	Shinobu Katsuragi (Flashback)
*Takumi Katsuragi (In Sento's mind)
*Nariaki Utsumi
====Kamen Riders====
Kamen Rider Kuuga 	Yusuke Godai
Kamen Rider Agito 	Shoichi Tsugami
Kamen Rider Ryuki 	Shinji Kido
Kamen Rider Faiz 	Takumi Inui
Kamen Rider Blade 	Kazuma Kenzaki
Kamen Rider Hibiki	Hitoshi Hidaka
Kamen Rider Kabuto	Soji Tendo
Kamen Rider Den-O 	Momotaros
Kamen Rider Kiva 	Wataru Kurenai
Kamen Rider Decade	Tsukasa Kadoya
Kamen Rider Double	Philip & Shotaro Hidari
Kamen Rider OOO 	Eiji Hino
Kamen Rider Fourze	Gentaro Kisaragi
Kamen Rider Wizard	Haruto Soma
Kamen Rider Gaim 	Kouta Kazuraba
Kamen Rider Drive 	Shinnosuke Tomari
Kamen Rider Ghost 	Takeru Tenkuji
Kamen Rider Ex-Aid	Emu Hojo
====Villains====
*Terror Dopant
*Uva
*Kazari
*Gamel
*Mezool
*Kyouryu Greeed
*Scorpion Zodiarts
*Cancer Zodiarts
*Virgo Zodiarts
*Leo Zodiarts
*Sagittarius Nova
*Evolved Gremlin
*Lord Baron
*Heart
*Brain
*Medic
*Gamma Ultima Ebony
*Gamedeus
==Cast==
*: 
*: 
*: 
*: 
*: 
*: , Theater pamphlet
*: 
*: 
*: 
*: 
*: 
*, : 
===Guest cast===
*: 
*: 
*: 
*: 
*: 
*: 
*: 
*Civilian: 
*News Caster: 
*Weather Caster: 
*Reporter: 
===Suit Actors===
*Kamen Rider Build: 
*Kamen Rider Cross-Z: 
*Kamen Rider Grease: 
*Kamen Rider Rogue: 
*Kamen Rider Evol: 
*Kamen Rider Blood: 
*Zebra Lost Smash: 
*Scissors Lost Smash: 
==Forms and Collectibles Used==
===Fullbottles===
*Bottle used:
**Build
***Biotic: Lion (in Build Phone), Rabbit, FullFull RabbitTank (Rabbit Mode), Taka, Ninjya (in Drill Crusher), Gold Rabbit (in Fullbottle Buster)
***Abiotic: Tank, FullFull RabbitTank (Tank Mode), Gatling
***Other: Hazard Trigger, Genius, Cross-ZBuild Can
**Cross-Z
***Biotic: Dragon Magma
***Abiotic: N/A
***Other: Cross-Z Magma Knuckle
**Grease
***Biotic: Rose (in Twin Breaker)
***Abiotic: Gatling (in Twin Breaker), Syoubousya (in Twin Breaker), Lock (in (Twin Breaker)
**Rogue
***Biotic: Crocodile Crack
***Abiotic: N/A
**Blood
***Biotic: Cobra Lost
***Abiotic: N/A
***Other: Great Cross-Z Dragon, Hazard Trigger
**Zebra Lost Smash
***Shimauma Lost
**Scissors Lost Smash
***Hasami Lost
*Form used:
**Build
***RabbitTank Form, RabbitRabbit Form, TankTank Form, HawkGatling Form, Genius Form, Cross-ZBuild Form
**Cross-Z
***Cross-Z Magma, Cross-ZBuild Form
===Sclashjellies===
*Jelly used:
**Grease
***Robot
===Evolbottles===
*Bottle used:
**Cross-Z
***Biotic: Great Dragon
***Abiotic: N/A
***Other: Great Cross-Z Dragon
**Evol
***Biotic: Cobra
***Abiotic: Rider
***Other: Evol Trigger
*Form used:
**Cross-Z
***Great Cross-Z
**Evol
***Black Hole Form (Phase 4: Perfection)
===Ridewatches===
*Watch used:
**Zi-O, Build
*Rider Armor(s) used:
**BuildArmor
==Theme song==
The theme song for the film is Everlasting Skyhttps://twitter.com/toei_riderBUILD/status/1006781454792253445, performed by Beverly, who also performs the show's main theme song, Be The One. The chorus was first played at the press conference for the film and other subsequent press conferences for the film alongside .
==International Movie Theaters==
*The film was released in Hong Kong alongside on November 12, 2018, available in both Japanese language with Cantonese subtitles, and Cantonese dub.
*The film was released in Thailand on February 24, 2019, available in both Japanese language with subtitle and Thai dub. This release did not include Kyuranger's movie.
*The film was made available to stream in China's Mainland VOD-service Tencent Video on May 31, 2019.
* released the film in the Philippines in 2018. 
HK_Be_The_One_Poster.jpg|Hong Kong poster
Thailand Be The One Poster.jpg|Thailand poster
BTO China's Mainland Poster.jpg|China's Mainland poster
==Errors==
*When Sento puts on the Build Driver before his fight with Blood, the sounds of the Ziku-Driver, specifically the one when a Ridewatch is inserted, is played instead of the Build Driver's usual activation sound.
*When Cross-ZBuild perform their Love & Peace Finish on Blood, the Build Driver announces "Are you ready?" instead of "Ready, go!".
*Zi-O's Time Mazine came shooting down like a meteor instead of arriving from a time portal.
*The Ziku Driver does not announce "Rider Time" before beginning the announcements for BuildArmor.
*When Zi-O BuildArmor performs his Vortrex Time Break, the Ziku Driver stays stationary the whole time, with no sign of Zi-O ever turning it to activate it.
==Notes==
*The title of the film is named after the show's theme song.
*This is the first time to not have the Secondary Rider using his default form throughout the movie.
*The announcement trailer hinted at Build RabbitDragon's inclusion in the movie, but it was later scrapped. Instead, Cross-ZBuild was showcased, while RabbitDragon made its debut in the series' final episode.https://www.youtube.com/watch?v=bTqzkY5P2fA
*Ghost being pitted against Gamma Ultima Ebony is curious; in Kamen Rider Ghost, the black-colored Ultima form was accessed exclusively by Takeru's ally Edith, while the enemy Gamma Ultima were colored white.
*This film is dedicated to Daichi Nobe, who passed away two months prior to this movie's release.
*Out of all of the Riders that appeared in the post-credit scene, Sento explicitly only recognized Ex-Aid and not the others, whom he met along with the four senior Riders (OOO, Fourze, Gaim and Ghost) in Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders after pursuing him in his past life as Takumi Katsuragi.
**During Heisei Generations FINAL, despite meeting them, Sento only had brief interactions with the four aforementioned Riders and was in cooperation with Ex-Aid for most of the movie.
*When Zi-O BuildArmor performs his Vortex Time Break attack, Wizard strangely got caught in the attack, though he was only knocked back instead of being explicitly destroyed like the monsters.
*In an interview with Takahito Omori, the post-credits scene was intended to be a "festive" prelude to the Heisei Era's 20th Anniversary. Omori had permission from Shin-ichiro Shirakura to include the Heisei Riders. However, there was no clear purpose for the scene where Sento watching the Heisei Riders fight and meeting Zi-O. Omori mentioned leaving this scene open to interpretation for viewers.https://news.mynavi.jp/article/20181231-749798/
==External Links==
*Official Site
==References==
Category:Summer Movies
Category:Crossovers