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.
Episode 1 (Episode 1)
Writer: Shūkei Nagasaka
Air date: 1974-02-16
Runtime: 25 min
Episode 2 (Episode 2)
Writer: Shūkei Nagasaka
Air date: 1974-02-23
Runtime: 25 min
Episode 3 (Episode 3)
Writer: Masaru Igami
Air date: 1974-03-02
Runtime: 25 min
Episode 4 (Episode 4)
Writer: Masaru Igami
Air date: 1974-03-09
Runtime: 25 min
Episode 5 (Episode 5)
Writer: Ikuro Suzuki
Air date: 1974-03-16
Runtime: 25 min
Episode 6 (Episode 6)
Writer: Ikuro Suzuki
Air date: 1974-03-23
Runtime: 25 min
Episode 7 (Episode 7)
Writer: Shūkei Nagasaka
Air date: 1974-03-30
Runtime: 25 min
Episode 8 (Episode 8)
Writer: Shūkei Nagasaka
Air date: 1974-04-06
Runtime: 25 min
Episode 9 (Episode 9)
Writer: Masaru Igami
Air date: 1974-04-13
Runtime: 25 min
Episode 10 (Episode 10)
Writer: Masaru Igami
Air date: 1974-04-20
Runtime: 25 min
Episode 11 (Episode 11)
Writer: Ikuro Suzuki
Air date: 1974-04-27
Runtime: 25 min
Episode 12 (Episode 12)
Writer: Masaru Igami
Air date: 1974-05-04
Runtime: 25 min
Episode 13 (Episode 13)
Writer: Masaru Igami
Air date: 1974-05-11
Runtime: 25 min
Episode 14 (Episode 14)
Writer: Masaru Igami
Air date: 1974-05-18
Runtime: 25 min
Episode 15 (Episode 15)
Writer: Masaru Igami
Air date: 1974-05-25
Runtime: 25 min
Episode 16 (Episode 16)
Writer: Masaru Igami
Air date: 1974-06-01
Runtime: 25 min
Episode 17 (Episode 17)
Writer: Shozo Murayama
Air date: 1974-06-08
Runtime: 25 min
Episode 18 (Episode 18)
Writer: Ikuro Suzuki
Air date: 1974-06-15
Runtime: 25 min
Episode 19 (Episode 19)
Writer: Ikuro Suzuki
Air date: 1974-06-22
Runtime: 25 min
Episode 20 (Episode 20)
Writer: Masayuki Shimada
Air date: 1974-06-29
Runtime: 25 min
Episode 21 (Episode 21)
Writer: Masaru Igami
Air date: 1974-07-06
Runtime: 25 min
Episode 22 (Episode 22)
Writer: Masaru Igami
Air date: 1974-07-13
Runtime: 25 min
Episode 23 (Episode 23)
Writer: Masaru Igami
Air date: 1974-07-20
Runtime: 25 min
Episode 24 (Episode 24)
Writer: Masaru Igami
Air date: 1974-07-27
Runtime: 25 min
Episode 25 (Episode 25)
Writer: Ikuro Suzuki
Air date: 1974-08-03
Runtime: 25 min
Episode 26 (Episode 26)
Writer: Ikuro Suzuki
Air date: 1974-08-10
Runtime: 25 min
Special Edition, Full Force of Five Riders!! (Episode 27)
Writer: Kimio Hirayama
Air date: 1974-08-17
Runtime: 25 min
Overview: It is a special episode which acts as a recap of the Kamen Riders up to X-Rider, as well as featuring the return of Shiro Kazami (Kamen Rider V3), who will assist X in his fight against G.O.D..
Look! X-Rider's Great Transformation!! (Episode 28)
Writer: Shozo Murayama
Air date: 1974-08-24
Runtime: 25 min
Overview: Following the return of Shiro Kazami (Kamen Rider V3) in the previous episode, it debuts a permanent upgrade for X-Rider.
Deathmatch!! X-Rider vs. X-Rider!! (Episode 29)
Writer: Ikuro Suzuki
Air date: 1974-08-31
Runtime: 25 min
I Want Blood! The Monster of the Corpse Swamp!! (Episode 30)
Writer: Ikuro Suzuki
Air date: 1974-09-07
Runtime: 25 min
Stand! Kingdark!! (Episode 31)
Writer: Shozo Murayama
Air date: 1974-09-14
Runtime: 25 min
Showdown! Kingdark vs. X Rider (Episode 32)
Writer: Masaru Igami
Air date: 1974-09-21
Runtime: 25 min
Fear! Kingdark's Revenge!! (Episode 33)
Writer: Shozo Murayama
Air date: 1974-09-28
Runtime: 25 min
Overview: Keisuke accidentally helps Dr. Yan daughter and entrusts her to Tobee. However, the true identity of the girl was the monster Centipede Youkihi. Kamen Rider X raids G.O.D.'s hideout to save Tobee who was taken hostage. Kamen Rider 2 and Kamen Rider V3 also join the battle.
The Weapon of Terror Aims at Three Riders!! (Episode 34)
Writer: Ikuro Suzuki
Air date: 1974-10-05
Runtime: 25 min
Farewell, X-Rider (Episode 35)
Writer: Masaru Igami
Air date: 1974-10-12
Runtime: 25 min
Overview: Finally, G.O.D. gets all the blueprints of Dr. Nanbara's RS Device and completes it. Kamen Rider X challenges a deadly battle to destroy the device at the expense of his life. However, as the G.O.D. attack intensifies, the giant Kingdark finally begins to move...
