How Can I Use the F1 Body to Fight?

How Can I Use the F1 Body to Fight? (F1ボディでどうやって戦えばよいのか) is the twenty-second episode of Kamen Rider Drive. It is the debut of the Trailer-Hou, as well as the full appearance of Drive Type Formula after a glimpse of it was seen at the end of the previous episode.

Synopsis
Just as Shinnosuke had deduced, the bodies were of people the Roidmudes had copied in the past. Having avoided being defeated by Mashin Chaser after using a new Shift Car, Shinnosuke tries to see if there was anything left of his once righteous spirit. Also, Type Formula’s restrain on Shinnosuke’s body puts his life at serious risk. Go continues to insist on equating Roidmudes with evil and declares his intention of ending Chase as soon as he can. Meanwhile, the supposedly dead bodies stored at the morgue start crawling into the Special Investigation Unit's office.

Plot
Once Drive manage to fight back Chase by using Type Formula, the Rider overpowers and saves the Shift Cars however this would also strain Shinnosuke's body once the Full Throttle is activated. Returning to the Unit, the team continues to struggle about the case while Rinna fixes the Shift Cars in the Drive Pit. Shinnosuke would thank Go for saving him, but the latter still decides which one would deal with Chase before leaving the garage. As Go leaves with Kiriko watch over her brother, Shinnosuke and Mr. Belt were discussing about fixing the new Type Formula as Rinna reveals that she is currently working on a new weapon suited for Formula but needs to find solutions for it. As she thinks about giving the weapon a finish touch, this reminds her about Harley's gift hoping for clues, which reveals to be Harley Pie. Later in the Eastern Kanto Medical Inspector's office, the diseased victims started to be awaken and attacks Special Investigation Unit. With one of corpses kidnapped Kiriko, Go chases after it as Jun throws Shift Wild to the corpse as the enemy vaporizes into dust which leads to the case solution. Mr. Belt sense trouble upstairs as Shinnouske arrives to the scene and Mr. Belt confirms that the corpses were copies by Medic which this explain about the victims being killed at the same time. Kyu also informs to Shinnosuke that Kiroko was kidnapped which he rushed through while Rinna continue to struggle about the new weapon. The remaining corpses gives a fainted Kiriko to Chase which the corpses burns to dust until Go arrives. Demanding Chase to return his sister, Chase informs to the Rider that he was ordered to fight Drive. However Mach started to call him a coward of toying people's lives which Chase's memories started to trigger as the latter would return Kiriko to Mach and questions about his task. Chase would tell Mach a message to drive that they will in equal terms, but Mach doesn't trust him as he denies of murdering people. Medic appears and agrees with Mach, but felt curious about Chase's reprogramming as one the Reaper Legion attacks the Rider with Kiriko started to wake up. After defeating the Reaper Legion, Go faints with Shinnosuke arriving too late. Shinnosuke felt irate about Go's action as the latter informs him about Chase's duel. Later, Brain was attacked by Chase when Medic knew that Brain have weaken Chase's firewall. Medic would reveal to Brain that she increase Chase's destructive impulse at max level meaning that she can order Chase to kill anyone that she wants before freeing Brain. On the next day, Chase attacks the city until Shinnosuke and Kiriko arrive. Kiriko tries to have Chase returning to his former self but its has no effect as Shinnosuke have force himself to face Chase. Even Drive uses Dead Heat, it is still no match to defeat Chase as the form is almost at its limited. Back in the Drive Pit, Rinna continues struggling until she find hints for the weapon which were hidden behind the labels and manage to finish in time. As Drive is about to meet his end, the Rider was saved by a new weapon and becomes Type Formula. With Type Formula, Drive overpowers Chase easily and tries the new weapon which Drive named as Trailer-Hou. Drive defeat Chase and witness his Core's destruction with sadden Kiriko as Chase's Ride Chaser appears in the Drive Pit. Later that day, Kiriko was shocked to see a injured Chase.

Cast

 * Shinnosuke Tomari (泊 進ノ介): Ryoma Takeuchi (竹内 涼真)
 * Kiriko Shijima (詩島 霧子): Rio Uchida (内田 理央)
 * Chase (チェイス): Taiko Katono (上遠野 太洸)
 * Go Shijima (詩島 剛): Yuu Inaba (稲葉 友)
 * Jun Honganji (本願寺 純): Tsurutaro Kataoka (片岡 鶴太郎)
 * Rinna Sawagami (沢神 りんな): Rei Yoshii (吉井 怜)
 * Kyu Saijo (西城 究): Kenta Hamano (浜野 謙太)
 * Narration (ナレーション), Drive Driver's voice (ドライブドライバーの声): Chris Peppler (クリス・ペプラー)
 * Brain (ブレン): Shota Matsushima (松島 庄汰)
 * Heart (ハート): Tomoya Warabino (蕨野 友也)
 * Medic (メディック): Fumika Baba (馬場ふみか)

Guest cast

 * Dead Body: Kenta Nitta (新田 健太), Yohei Fujita (藤田 洋平), Akio Kumamoto (隈本 秋生), Giichi Matsumoto (松本 義一), Nobuyuki Asaki (浅木 信幸)

Shift Cars & Signal Bikes

 * Car Used:
 * Type Change: Shift Formula, Shift Speed (once in Trailer-Hou), Shift Deadheat, Shift Wild (in Trailer-Hou)
 * Tire Exchange: N/A
 * Type Used:
 * Type Formula, Type Speed, Type Dead Heat
 * Bike Used:
 * Form Change: Signal Mach, Shift Deadheat
 * Signal Exchange: N/A
 * Form Used:
 * Mach, Deadheat Mach
 * Viral Core Used:
 * Chaser Spider, Chaser Bat, Chaser Cobra
 * Tune Form Used:
 * Triple Tune, Tune Chaser Spider

Errors

 * Though the five murder victims are all said to have been previously copied by Roidmudes to assume a human form, only the one specifically identified by Shinnosuke (037's human form) in the previous episode had actually been seen before.