Robotics scientist Keitaro Jin and his son Keisuke become caught up in a campaign of terror by an evil organization known as "G.O.D.". They are attacked and the professor's technology gets stolen, but before Keitaro dies, he performs surgery on his son, using the last of his robotics technology to transform Keisuke into the "X-Rider". 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.’s Japan branch.

Ryô Hayamias Keisuke Jin / Kamen Rider X
Akiji Kobayashias Tobei Tachibana
Yasuhiko Uchidaas Apollo Geist
Osamu Sakaas General of G.O.D. (voice)
Shinji Nakaeas Narration (voice)
Hiroshi Miyauchias Shiro Kazami
Masaru Igami
Shunsuke Kikuchi