Emu wakes up in a seemingly abandoned Amusement Park floating in the sky and encounters other Kamen Riders who should be dead. Emu must find out the mystery of how he and the others got here.
After discovering that unlike them, Emu is alive, the other Riders become divided between those who view him as a threat and those who support him. However, when the monsters from Shocker attacks again, all Riders join forces against them, until Emu discovers the truth when one of the deceased Riders reveals his true form and intentions.
Emu finally learned the truth of the mastermind of the returning death. With his last chance, Emu and the other trapped Riders joining forces to defeat him, Kuroto Dan.
