This series premiered in late 2009 following the finale of Decade. Shotaro Hidari is a private investigator in the ecologically-minded city of Futo who works with his partner Philip to investigate crimes that involve users of Gaia Memories which transform them into monstrous beings known as Dopants. Shotaro and Philip have their own set of Gaia Memories that they use in conjunction with the Double Driver belt, with Philip's mind travelling into Shotaro's body to fight as Kamen Rider Double. With their landlord (and daughter of their mentor) Akiko Narumi, Shotaro and Philip protect Futo all while discovering more about the past that Philip cannot remember.

In the ecologically-minded city of Futo (風都 Fūto , the "Windy Ciy"), there are many windmills and the people live in harmony. However, the Sonozaki Family sell mysterious devices resembling USB flash drives called Gaia Memories to criminals and other interested parties who use them to become monsters called Dopants, committing crimes with the police force powerless to stop them. To make matters worse, the Gaia Memories carry a dangerous toxin that cause their users to go insane to the point where they could die from the life-threatening devices. After the death of his boss, the self-proclaimed hardboiled (actually half-boiled) detective Shotaro Hidari works with the mysterious Philip, who possesses the true Gaia Memory, to investigate crimes which involve Dopants. Using their own Gaia Memories, Shotaro and Philip use the Double Driver belts to transform and combine into Kamen Rider Double to fight the Dopant menace and keep Futo safe. While joined in their fight by investigator Ryu Terui, who transforms into Kamen Rider Accel, the mystery of Philip's past, his relation to the Sonozaki Family, and their Museum organization are revealed.

Cast   : Renn Kiriyama as Shoutaro Hidari (Kamen Rider Double ~ Cyclone)

            Masaki Suda as Philip (Kamen Rider Double ~ Joker)

            Minehiro Kinomoto as Ryu Terui (Kamen Rider Accel)

            Hikaru Yamamoto as Akiko Yarumi

Genre   : Tokusatsu                                                         Created By : Shotarou Ishinomori

Distributor : Toei Company                                            Episode : 1 ~ 49

Period   : 06-Sep-2009 ~ 29-Aug-2010                          Subtitle   : English

Language : Japanese                                                       File Format : mp4

This DVD is a copy version, downloaded from Japanese website and with subtitle (English).