X
Robotics scientist Keitaro Jin and his son Keisuke become caught up in the campaign of terror by an evil organization known as "G.O.D.". They are attacked and the professor's technology stolen, but before Keitaro dies, he is still able to perform surgery on his son. With the very last of his robotics technology, he transforms his son into "Kamen Rider X". To avenge his father's death and ensure the safety of the entire world, Keisuke uses this technology as he battles the monstrous minions of G.O.D.
X-X-X-Rider is Born!!
G.O.D. a secret organization is planning to conquer the world but a new hero Kamen Rider X stands in their way.
Run, Cruiser! X Rider!!
As Keisuke Jin is troubled by no longer being human, a mysterious sound causes everyone who hears it to become violently homicidal. Why is one child not affected? And what links him and the newly-born X-Rider?
Assassination Dark Spider Operation!!
GOD, the Shadow of Fear!!
The One-Eyed Monster's Human Review Operation!
The Japanese Island Fragmentation Plan!
A mysterious bus falling accident. Sachiko, a girl who lost her parents due to the accident. Pittying Sachiko who was full of sadness, Keisuke Jin investigates the cause. Hovewever Sachiko was kidnapped by someone.