OOO, Den-O, All Riders: Let’s Go Kamen Riders

After a battle with three Mole Imagin, Eiji and Ankh team up with Kotarou and Momotaros as they travel back in time to 1971 aboard the Den-Liner to stop the Imagin. But Ankh’s desire to obtain Core Medals while in the past sets off a chain of events that alters the 40 year history of the Riders and the world. It’s up to OOO and New Den-O to stop Shocker’s plans for world domination and restore the timeline… and the Kamen Riders!