When Natsumi realizes that this is the world from her nightmares, she becomes wary for Tsukasa's well-being. Finding him in a tuxedo and feeling that this is the final chapter to their journey, they witness Wataru and Kazuma leading their respective Rider/monster groups against each other. After Rising Ixa and Leangle are killed off in the fight, Tsukasa makes his way to Wataru as he grieves over Ixa's death. Meeting the Fangire Queen Yuki, they learn from Wataru that the Riders are fighting each other to maintain the existence of their worlds.
| Title | Rider War - The Prologue |
|---|---|
| Genres | Action & Adventure Sci-Fi & Fantasy Drama |
| Release Date | 2009-08-23 |
| Episode Runtime | 00 Hours 24 Minutes |
| Season Number | 19 |
| Episode Number | 30 |
| Production Companies | TV Asahi, Toei Company, ADK, Ishimori Production |
