Teaming up with Takumi and Kusaka, Sougo and his crew attempt to uncover the truth behind the mysterious Fourze/Faiz Another Rider, and his connection to Amanogawa student Karin Yamabuki. Also, Geiz makes a truly explosive phone call.

The crew investigate at series of mysterious disappearances at nearby Amanogawa High School, believing them to be linked to the activities of the Time Jackers. They haven’t reckoned with the interference of a rogue Rider from times past however…