風の街・風都で多発する奇怪な事件。それはUSBメモリ型の特殊なアイテム「ガイアメモリ」を用いて超人的な力を手に入れた怪人「ドーパント」によるものだった。ハードボイルドになりきれないハーフボイルド＝半熟な私立探偵・左翔太郎の元には、今日もドーパント絡みのやっかいな依頼が持ち込まれる。翔太郎とその相棒・フィリップは二人で一人の仮面ライダー、Ｗへと変身し、事件を解決へと導くのだった……。謎が謎を呼ぶ事件。ガイアメモリを流通させる組織。2人は風都に隠された数々の秘密を解き明かしていく。
放送日: 2009-09-06
概要: Akiko Narumi arrives in Futo to be the landlord of the "hard-boiled" detective Shotaro Hidari, who finds himself involved in a case involving an old friend and a Dopant.
放送日: 2009-09-13
概要: After his missing target is killed by another Dopant, Shotaro works with his partner Philip to figure out the truth regarding the killer while being dogged by Akiko and her strange sightings.
放送日: 2009-09-20
概要: Shotaro is hired to save a girl from a legendary casino who offers ultimate riches for victory - and ultimate penalty for loss.
放送日: 2009-09-27
概要: Tracking down the legendary casino, Shotaro must defeat its Dopant owner as Philip deals with a crisis hindering his mental abilities.
放送日: 2009-10-04
概要: Shotaro is hired to protect from an assassin a councilwoman and her daughter, who believes Double is her father.
放送日: 2009-10-11
概要: Shotaro debates the cost of keeping up Asuka's belief Double is her father as Museum steps up their motive in protecting their Gaia Memory factory.
放送日: 2009-10-18
概要: Philip chases after a street dancer key to a locked memory, while Shotaro pursues a cockroach avenger taking out hired victims.
放送日: 2009-10-25
概要: Shotaro tries to find the Cockroach Dopant's identity - in order to regain Double's missing Gaia Memories. Meanwhile, Philip tries to reunite the dance partners for their legendary move.
放送日: 2009-11-01
概要: Akiko gets a job as a maid of the Sonozaki family in order to investigate a Dopant abducting pastry chefs.
放送日: 2009-11-08
概要: Shotaro gets embroiled deeper in the Sonozakis connection to the Dopants as Akiko attempts to solve the criminal behind the patisserie abductions.
放送日: 2009-11-15
概要: Shotaro decides to help an underworld gang after a member is killed by a Dopant-possessed car.
放送日: 2009-11-22
概要: When the search for the Virus Dopant takes an unexpected turn, Shotaro and Philip must work to find the true controller and the reason behind their grudge.
放送日: 2009-11-29
概要: Shotaro and Philip investigate a Dopant stalker causing chaos in order to impress Wakana.
放送日: 2009-12-06
概要: As Shotaro continues to try and lure out Wakana's violent stalker, Philip continues to get unusually close to the radio-broadcasting Sonozaki.
放送日: 2009-12-13
概要: A suspicious woman hires Shotaro to find a Dopant who is running amok while taking the name "Kamen Rider" as his own.
放送日: 2009-12-20
概要: Discovering a horrible secret from Saeko and seeing his partners captured by Arms Dopant, Philip must figure a way to save them even if using the unstable Fang Memory.
放送日: 2009-12-27
概要: When Shotaro is hired to find the daughter of his barber, he discovers horrible new developments regarding the Gaia Memories.
放送日: 2010-01-03
概要: As Shotaro and Philip discover the truth regarding the teens using the Bird Memory, Kirihiko discovers the truth behind the Museum organisation.
放送日: 2010-01-10
概要: The new leader of Fuuto Police's Dopant investigation division uses Shotaro to track down a Dopant attacking victims with ice.
放送日: 2010-01-17
概要: As Ryu's intensity threatens to harm innocents, Shotaro and Philip must discover the reason behind his anger while putting a stop to the ice-powered Dopant.
放送日: 2010-01-24
概要: Makura involves Shotaro in a case in rooting out a traitor within the Fuuto police leaking out information on the Gaia Memories.
放送日: 2010-01-31
概要: Aya tries to gain Shotaro and Ryu's trust in using her Dopant power to be an asset, hiding her true intentions and desires of her situation.
放送日: 2010-02-07
概要: A request from Queen and Elizabeth leads to an investigation of a terrible street performer mysteriously winning a popular singing competition.
放送日: 2010-02-14
概要: While trying to figure a means to defeat the tricky Liar Dopant, Shotaro confronts Jimmy about his confidence and trust in his only fan.
放送日: 2010-02-21
概要: Akiko is asked by a little girl to find her lost doll, which has been terrorizing targets throughout Fuuto.
放送日: 2010-02-28
概要: As Horinouchi is taken by the bizarre Shinkuro for further usage, Akiko tries to decipher the meaning of the doll and the truth behind Horinouchi's daughter.
放送日: 2010-03-07
概要: An air-headed female magician who turns invisible asks Shotaro to find the seller of her Gaia Memory, which ultimately leads Ryu to the man who killed his family.
放送日: 2010-03-14
概要: Akiko and Philip desperately try to stop Ryu from taking immediate revenge on Shinkuro when he becomes key to saving Lily from her deadly Gaia Memory.
放送日: 2010-03-21
概要: Shotaro accepted a request from a girl fearing a Dopant who attacks its victims in their dreams which it can control.
放送日: 2010-03-28
概要: As Philip is taken by the Xtreme Memory to meet with Shroud, Shotaro continues to try and figure a way to discover the culprit behind Nightmare Dopant's attacks.
放送日: 2010-04-04
概要: After being in prison for 10 years, an old client of Sokichi's asks Shotaro to help him uncover some information - which he had asked Sokichi to look into before being arrested.
放送日: 2010-04-11
概要: While under pressure of being abandoned by Philip as his Double partner for not keeping up, Shotaro tries to decipher the truth behind Bito's framing.
放送日: 2010-04-18
概要: Shotaro decides to help a peculiar woman find her lost cat while Ryu investigates people committing strange actions beyond their control.
放送日: 2010-04-25
概要: Shotaro fights to prevent Yukie from joining Museum for the sake of herself and of the memory of her deceased brother Kirihiko.
放送日: 2010-05-02
概要: As Shotaro is asked to pursue a young teacher by her students, Ryu also goes after her due to a remarkable similarity between her and his deceased sister.
放送日: 2010-05-09
概要: Ryu must master the Trial Memory in order to save Nagi from Shinkuro, who has made his move with Saeko for Ryubee's downfall.
放送日: 2010-05-16
概要: Shotaro is hired to find a mysterious man's family, while Philip is confronted by Wakana about her position in Museum with her sister gone.
放送日: 2010-05-23
概要: As Ryu tries to gain more information regarding Yamashiro's knowledge of Museum, Philip contemplates leaving Futo forever with Wakana.
放送日: 2010-05-30
概要: Shotaro is brought in to help a movie-theater worker who has unknowingly become the star of an epic others are forced to watch.
放送日: 2010-06-06
概要: As Akiko desperately tries to complete Toru's movie, the insular director is targeted by Wakana for allowing her to access the full potential of her Dopant power.
放送日: 2010-06-13
概要: Jinno asks Shotaro to help him find a cold-hearted, diamond-obsessed woman who set him up for arrest.
放送日: 2010-06-20
概要: Shotaro fights to save Rui from destroying herself, while Philip tries to figure out how to outsmart Wakana in gaining his library research.
放送日: 2010-06-27
概要: Shotaro and Ryu are asked by a mother to save her daughter, who has become an old woman. Meanwhile, Shroud wants Phillip and Ryu to become Kamen Rider Double CycloneAccel Xtreme.
放送日: 2010-07-04
概要: Ryu tries to decipher the truth regarding Shroud and her true purpose as she tries to force him and Philip to join together into the ultimate W to defeat Ryubee.
放送日: 2010-07-11
概要: A request from a worker at the Futo museum forces Shotaro to find an artifact required by Ryubee for his final master plan.
放送日: 2010-07-18
概要: With Shotaro trapped in fear and Ryu injured, Philip is at the mercy of his father Ryubee, who prepares to use his deceased son and Wakana to bring about Gaia Impact.
放送日: 2010-07-25
概要: Philip chooses to ask Shotaro to help him find Wakana, who is being held by Kazu for Foundation X's own plans, so he could see her one last time.
放送日: 2010-08-01
概要: Shotaro and Philip must endure the ultimate hardships in order to stop Kazu from completing his own Gaia Impact to complete what could be their final case together.
放送日: 2010-08-08
概要: One year after Philip's departure, Shotaro continues onward; but a case involving saving a boy's sister from Dopant thugs brings forth a change for the better.
