The story revolves around the nine previous universes of the Kamen Riders from the Heisei era merging into one, something that would destroy all the worlds. To prevent this, Tsukasa Kadoya transforms into Kamen Rider Decade and is told that to protect his own world he must travel with Natsumi and her grandfather to the other Kamen Riders' Worlds (referred to as an A.R. World or Another Rider's World) and eliminate the anomaly in that world. Along the way, confronting the mysterious Narutaki and the thief Daiki Kaito, they are joined by Yusuke Onodera of the World of Kuuga and Kivala of the World of Kiva.
- Download link below:
- EP 1 Rider War
- EP 2 World of Kuuga
- EP 3 World of Kuuga 2
- EP 4 World of Kiva
- EP 5 World of Kiva 2
- EP 6 World of Ryuki
- EP 7 World of Ryuki 2
- World of Blade
- World of Faiz
- World of Agito
- World of Den-O
- EP 16 World of Kabuto
- EP 17 World of Kabuto 2
- EP 18 World of Hibiki
- EP 19 World of Hibiki 2
- EP 20 World of Nega
- EP 21 World of Nega 2
- EP 22 World of Diend
- EP 23 World of Diend 2
- EP 24 World of Shinkenger
- EP 25 World of Shinkenger 2
- EP 26 World of Black RX
- EP 27 World of Black
- EP 28 World of Amazon
- EP 29 World of Amazon 2
- EP 30 Another World of Kiva
- EP 31 Another World of Blade
- Extra Episode Decade
