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.

Tsukasa travels to his home world of the World of Decade, where he discovers the origin of his powers and his true heritage as the leader of Dai-Shocker. The film features all ten of the lead Heisei Kamen Riders, as well as all of the Shōwa period Kamen Riders, leading to a total of 25 Riders.

Diagnosed with dementia, Yuriko's mind quickly begins to fade. Yet, for her son Izumi, memories of the mother feel as vivid as when he lived them. One in particular, when he believed she had disappeared, haunts him terribly.

Based on the best selling manga, Haruna Nagashima (Ito Ono) devoted herself to softball while in middle school. Now that she is in high school, Haruna believes its time find a boyfriend. Unfortunately for Haruna, she didn't pay attention to trends and is now clueless on how to attract a boy. Through a fortuitous event, Haruna encounters popular upperclassman You Komiyama (Junpei Mizobata) Haruna asks You to teach her how to become attractive to boys. You agrees but with one catch. She can't fall in love with him ...

While the Second World War rages, the teenage Mahito, haunted by his mother's tragic death, is relocated from Tokyo to the serene rural home of his new stepmother Natsuko, a woman who bears a striking resemblance to the boy's mother. As he tries to adjust, this strange new world grows even stranger following the appearance of a persistent gray heron, who perplexes and bedevils Mahito, dubbing him the "long-awaited one."

At an all boys high school, Tadakuni, Yoshitake and Hidenori are close friends and think usually all day about girls. Their high school then co-hosts a school festival with an all girls high school.

While settling into married life with Akiko, Ryu is brought into a case involving a woman named Katsuragi Aoi, a member of a pickpocketing ring with most of her teammates murdered from unknown masked vigilantes that Ryu fought as Accel. As the details of the case begin to unravel, Ryu is framed and Akiko believes that he may not be faithful to her. As the clock ticks down, Ryu must solve the case, clear his name, and save his marriage before everything comes to an explosive end!

A new salesman named Kosuke Okuda happens to meet Mao Watarai, a friend from his middle school days. Back then, Mao was called stupid and bullied, but now she is an attractive woman. Kosuke and Mao fall in love and decide to marry, but Mao has a secret.

Set primarily before the events of Kamen Rider W Forever, Kamen Rider Eternal tells the story of Daido Katsumi, the formation of NEVER, the mission that led them to target Fuuto, and reveals just how Daido obtained his Lost Driver and got his first taste of the power of Kamen Rider Eternal. As a mysterious woman retells this story to Phillip and Shotaro, they realize that Daido may not have been the simple monster he first appeared to be…

Intercepting the transport carrying Foundation X’s new 2nd generation Gaia Memories, the special-ops unit NEVER, led by Daido Katsumi, intend to turn Fuuto into Hell on Earth. With Daido wielding the T2 Eternal Memory and a Lost Driver, granting him power in the form of Kamen Rider Eternal, Fuuto’s Kamen Riders are left powerless as Daido and his allies take control of Fuuto Tower, converting it into a massive laser weapon…