Early summer, Keiichi had just moved to a remote mountain village. As he becomes close friends with a group of girls, he was enjoying his life in the village. However when he starts to become suspicious that his friends may be deeply involved in successive murders that occur every summer, the situation around Keiichi gradually starts to turn into something more sinister.

The fourteenth 'Conquest' film.

Serving as the true ending to Kamen Rider Decade and revealing the origins of Kamen Rider W, this movie is split into three parts. In "Kamen Rider Decade: Final Chapter", Tsukasa Kadoya fully embraces his title as the Destroyer of Worlds. In "Kamen Rider W: Begins Night", Shotaro and Philip recount the night on when it all began. Elements of both parts converge in the movie's final part, "Movie War 2010" as our heroes fight the forces of Super Shocker.

As Himuro (Yasukaze Motomiya) leads Kyowakai into its new structure, Tamura (Yoshiyuki Yamaguchi) oversees the Osaka headquarters, while younger members like Ryoichi (Shin Koyanagi), son of former chairman Gonda, and Joji (Takashi Kitadai) steadily grow. Meanwhile, Kawatani (Hitoshi Ozawa) is attacked by a hitman sent by Watanabe, the former Kyowakai HQ chief plotting a comeback. Isolated within the executive ranks, Kijima confronts Watanabe but gradually wavers under his influence. Across Japan, tensions rise: in Kanto, Mita (Shun Sugata) and Wakamiya (Hideyuki Kawahara) move on land acquisitions tied to a casino bill; in Okinawa, internal strife erupts; in Shikoku, a boss’s retirement sparks unrest. Yakuza nationwide begin positioning themselves for the coming conflict.

The special event is a stage show held on December 20, 2009 at Shibuya C.C. Lemon Hall, to commemorate the release of the movie Kamen Rider x Kamen Rider W & Decade Movie Taisen 2010. It features the casts and song artists from the Kamen Rider W TV series.

A series of 26 net movies, comedy-themed shorts (one for every letter of the alphabet) that were released by Toei to promote the Kamen Rider W summer movie, Kamen Rider W Forever: A to Z/The Gaia Memories of Fate.

Eight years after the battle for the Book of Omniscience, the peaceful lives of Touma, Rintaro, Mei and Kento are troubled by a mysterious new Falchion who can seemingly erase people from existence altogether!

Takaki runs a small cardboard processing company. One day, he killed himself. He did this because of Yoshiyuki. Yoshiyuki is the CEO of a company that works with Takaki's company. Due to Yoshiyuki, Takaki's company went bankrupt because of heavy debts. This caused Takaki to jump off of a rooftop building. Despite the appeals from Takaki's family, Yoshiyuki was unpunished by the law. Takaki ’s son Kazuma and Takaki ’s nephew Mitsuru decide to take revenge on Yoshiyuki.

Tension continues at the Kyowakai headquarters. Kawatani, Himuro, and Tamura are unable to hide their anger and confusion at the events that occur one after another, such as Shibuya's death and a series of absentees from meetings. Meanwhile, in Kobe, a new anti-chivalry group is starting to move. However, Baba, who plays the role of chairman and does not know about Shibuya's death, postpones the official raising of the company.

Mayu the teen girl hasn’t opened her heart to anyone since ten years ago when some terrible case happened. Instead of going to high school, she goes to the church every day and looks for redemption. One day, she disappears in the woods, silently and suddenly. On the other side, Mana lives with her husband and her seven-year-old daughter in happiness. However, an unexpected occurrence happens and tears their happiness apart. Her little girl Sakura plays in the woods and goes missing. Mana loses her mind because of sadness. What is there inside the woods?