The W Search/Two Detectives in One
E1
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.
The W Search/Those Who Make the City Cry
E2
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.
Don't Touch the M/How to Get to Heaven
E3
Shotaro is hired to save a girl from a legendary casino who offers ultimate riches for victory - and ultimate penalty for loss.
Don't Touch the M/Play With a Joker
E4
Tracking down the legendary casino, Shotaro must defeat its Dopant owner as Philip deals with a crisis hindering his mental abilities.
The Girl... A/Papa Is a Kamen Rider
E5
Shotaro is hired to protect from an assassin a councilwoman and her daughter, who believes Double is her father.
The Girl... A/The Price of Lying
E6
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.
Find the C/Philip Can't Stand It
E7
Philip chases after a street dancer key to a locked memory, while Shotaro pursues a cockroach avenger taking out hired victims.
Find the C/Dancing Hero
E8
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.
The S Terror/The Maid Detective Witnessed It!
E9
Akiko gets a job as a maid of the Sonozaki family in order to investigate a Dopant abducting pastry chefs.
The S Terror/The Great Detective's Daughter
E10
Shotaro gets embroiled deeper in the Sonozakis connection to the Dopants as Akiko attempts to solve the criminal behind the patisserie abductions.
The Revenge V/Infected Car
E11
Shotaro decides to help an underworld gang after a member is killed by a Dopant-possessed car.
The Revenge V/Grudge Beast
E12
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.
The Q on the Radio/Targeted Princess
E13
Shotaro and Philip investigate a Dopant stalker causing chaos in order to impress Wakana.
The Q on the Radio/Live Catastrophe
E14
As Shotaro continues to try and lure out Wakana's violent stalker, Philip continues to get unusually close to the radio-broadcasting Sonozaki.
The F Afterglow/Burglary Rider
E15
A suspicious woman hires Shotaro to find a Dopant who is running amok while taking the name "Kamen Rider" as his own.
The F Afterglow/Reclaim Your Partner
E16
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.
Farewell N/Memory Kids
E17
When Shotaro is hired to find the daughter of his barber, he discovers horrible new developments regarding the Gaia Memories.
Farewell N/The Friend with the Wind
E18
As Shotaro and Philip discover the truth regarding the teens using the Bird Memory, Kirihiko discovers the truth behind the Museum organisation.
The I Doesn't Stop/That Guy's Name Is Accel
E19
The new leader of Fuuto Police's Dopant investigation division uses Shotaro to track down a Dopant attacking victims with ice.
The I Doesn't Stop/Kamen Rider Style
E20
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.
The T Returns/A Melody Not Intended for Women
E21
Makura involves Shotaro in a case in rooting out a traitor within the Fuuto police leaking out information on the Gaia Memories.
The T Returns/The Man Who Cannot Die
E22
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.
L on the Lips/Singer-SongRider
E23
A request from Queen and Elizabeth leads to an investigation of a terrible street performer mysteriously winning a popular singing competition.
L on the Lips/The Liar Is You
E24
While trying to figure a means to defeat the tricky Liar Dopant, Shotaro confronts Jimmy about his confidence and trust in his only fan.
The P's Game/The Doll Has Sticky Fingers
E25
Akiko is asked by a little girl to find her lost doll, which has been terrorizing targets throughout Fuuto.
The P's Game/Akiko on the Run
E26
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.
The D Was Watching/The Transparent Magical Lady
E27
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.
The D Was Watching/Twin Maximum Suicide
E28
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.
The Nightmarish H/The Melancholy of the Sleeping Princess
E29
Shotaro accepted a request from a girl fearing a Dopant who attacks its victims in their dreams which it can control.
The Nightmarish H/Who Is the Prince?
E30
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.
The Wind Called B/One Must Chase The Beast
E31
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.
The Wind Called B/Now, in the Radiance
E32
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.
Y's Tragedy/The Woman Looking For Yesterday
E33
Shotaro decides to help a peculiar woman find her lost cat while Ryu investigates people committing strange actions beyond their control.
Y's Tragedy/Brother & Sister
E34
Shotaro fights to prevent Yukie from joining Museum for the sake of herself and of the memory of her deceased brother Kirihiko.
Beyond the R/The Rain Called Monster Approaches
E35
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.
Beyond the R/Surpass Them All
E36
Ryu must master the Trial Memory in order to save Nagi from Shinkuro, who has made his move with Saeko for Ryubee's downfall.
Visitor X/The Bridge of Promises
E37
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.
Visitor X/In the Name of the Museum
E38
As Ryu tries to gain more information regarding Yamashiro's knowledge of Museum, Philip contemplates leaving Futo forever with Wakana.
The Potential of G/Bad Cinema Paradise
E39
Shotaro is brought in to help a movie-theater worker who has unknowingly become the star of an epic others are forced to watch.
The Potential of G/I Can't Forgive You
E40
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.
The J Labyrinth/The Psychotic Villainess
E41
Jinno asks Shotaro to help him find a cold-hearted, diamond-obsessed woman who set him up for arrest.
The J Labyrinth/The Diamond Is Hurt
E42
Shotaro fights to save Rui from destroying herself, while Philip tries to figure out how to outsmart Wakana in gaining his library research.
O's Link/The Old Detective
E43
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.
O's Link/Shroud's Confession
E44
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.
Who the K Needs/The Devil's Tail
E45
A request from a worker at the Futo museum forces Shotaro to find an artifact required by Ryubee for his final master plan.
Who the K Needs/The Last Supper
E46
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.
The Abandoned U/A Request From Philip
E47
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.
The Abandoned U/Eternal Partners
E48
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.
Goodbye to the E/A Bouquet of Justice to This City
E49
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.