|This article is about a/an episode in Kamen Rider W.|
Shotaro decides to help an underworld gang after a member is killed by a Dopant-possessed car.
At the Narumi Detective Agency, Akiko has fallen ill with a cold and calls Shotaro an "idiot who never catches a cold", spurning Philip's interest in this phrase despite not knowing that it is an idiom. The agency then gets a phone call from a man named Mikio Aoki who claims that he is being chased and needs help. When Shotaro arrives on the scene, he comes across the man before seeing a black SUV run through him, causing the man to writhe in pain before falling down dead.
When Shotaro is taken in for questioning at the police station the next day, Makura thinking that he murdered Aoki, Jinno arrives to reveal that Aoki died from a mysterious disease. Deciding to get to the bottom of it, Shotaro and Akiko learn from Watcherman that Aoki was a member in a chop shop street gang. They head to the gang's usual hangout to talk to its leader Kurosu. Shotaro questions him, until Kurosu pulls a gun on Shotaro after one member of his posse hints that the SUV was stolen. Akiko, scared for their lives, drags Shotaro out before the other two gang members leave and talk about checking out the SUV.
Shotaro trails them as the SUV appears once more to run down the other two members, killing one of them before chasing after the other. Shotaro contacts Philip to transform as Philip is still investigating the idiom. Shotaro instead activates the Bat Shot to take photos of the driver, eventually transforming into Double to save the younger gang member before the Nasca Dopant intervenes. This allows the SUV to run down the gang member. Later, Philip identifies the driver as Kōhei Yamamura, whose older sister Sachi Yamamura was hit by a car driven by Kurosu's gang and is currently in the hospital in a coma. Believing that Kōhei is the Dopant, Shotaro confronts him and accuses him of it. Kōhei runs off into a bus to escape to continue his revenge, succeeding because Sachi's fiance Noriyuki Yushima just got off the bus and holds Shotaro at bay.
After talking to Yushima and learning about Kōhei, Shotaro gets a call from Akiko that she has followed Kurosu to a warehouse so he can gun down Kōhei in the SUV. Double arrives at the warehouse on the HardBoilder, provoking Kōhei to chase after him. Assuming HeatMetal and using the RevolGarry, Double manages to wreck the SUV without being infected. While inspecting the wreckage with Akiko, they cannot find a Gaia Memory just as the real Virus Dopant makes itself known.
- Memory Used:
- Soul - Cyclone, Heat
- Body - Joker, Metal
- Half Changes:
- CycloneJoker, CycloneMetal, HeatMetal
- Shotaro Hidari (左 翔太郎 Hidari Shōtarō): Renn Kiriyama (桐山 漣 Kiriyama Ren)
- Philip (フィリップ Firippu): Masaki Suda (菅田 将暉 Suda Masaki)
- Akiko Narumi (鳴海 亜樹子 Narumi Akiko): Hikaru Yamamoto (山本 ひかる Yamamoto Hikaru)
- Mikio Jinno (刃野 幹夫 Jinno Mikio): Takeshi Nadagi (なだぎ 武 Nadagi Takeshi)
- Shun Makura (真倉 俊 Makura Shun): Shingo Nakagawa (中川 真吾 Nakagawa Shingo)
- Watcherman (ウォッチャマン Wotchaman): Nasubi (なすび)
- Kirihiko Sudo/Sonozaki (須藤/園咲 霧彦 Sudō/Sonozaki Kirihiko): Yuki Kimisawa (君沢 ユウキ Kimisawa Yūki)
- Narration, Gaia Memory Voice (ナレーション、ガイアメモリ音声 Narēshon, Gaia Memori Onsei): Fumihiko Tachiki (立木 文彦 Tachiki Fumihiko)
- Sachi Yamamura (山村 幸 Yamamura Sachi): Rinako Matsuoka (松岡璃奈子 Matsuoka Rinako)
- Kohei Yamamura (山村 康平 Yamamura Kohei): Ryo Hashizume (橋爪 遼 Hashizume Ryo)
- Sachio Kurosu (黒須 サチオ Kurosu Sachio): Koji
- Noriyuki Yushima (湯島 則之 Yushima Noriyuki): Teppei Sakata (坂田 鉄平 Sakata Teppei)
- Mikio Aoki (青木 幹男 Aoki Mikio): Masato Tsujioka (辻岡 正人 Tsujioka Masato)
- Akada (赤田): Hitoshi Chikamatsu (近松 仁 Chikamatsu Hitoshi)
- Shirai (白井): Ko Tanikawa (谷川 功 Tanikawa Kō)
- Nezu (根津): Junichi Gamo (蒲生 純一 Junichi Gamo)
- As part of Super Hero Time, this episode aired alongside Samurai Sentai Shinkenger episode 39, Act 39: The Very Urgent First Aid Emergency.
- This episode aired on the same day as a rerun of the eighth episode of Kamen Rider Decade, as part of TV Asahi's re-broadcast of the series from beginning to end at the 6:30 am timeslot.
- This episode shows that Philip can connect with others if they have a Live Connector and bring them into the Gaia Library.
- This is the first time Double changes from CycloneMetal to HeatMetal.
Blu-ray Box 1 comes with 16 episodes.