S1 E1 • The Mysterious Spider Man

Takeshi Hongo is abducted by the evil organization Shocker. They turn him into a cyborg in order to conquer the world, only for him to escape and turn against his captors.

Première diffusion : 3 avril 1971

S1 E2 • The Terrifying Bat Man

Takeshi Hongo continues participating in races even after being transformed into a cyborg with the hopes of winning world races. In order to increase the number of people in the Shocker organization, the Bat Man is sent out to infect the world with its virus which turns people into mindless vampires.

Première diffusion : 10 avril 1971

S1 E3 • Monster Scorpion Man

The Shocker organization seeks to draw Kamen Rider out by letting a prisoner "escape" from the deadly stingers of the Scorpion Man's pet scorpions.

Première diffusion : 17 avril 1971

S1 E4 • Cannibal Sarracenian

On a trip to a botanical garden a girl is kidnapped by a human plant leaving her younger brother scared and alone. Fortunately for him Takeshi Hongo is willing to take his case and rescue his sister from the clutches of the evil Shocker organization.

Première diffusion : 24 avril 1971

S1 E5 • Monster Mantis Man

A series of strange earthquakes occur and Takeshi Hongo recieves a phone call from an old friend, earthquake analyst Ameyama Chikako. Chikako is abducted by the Shocker organization saying that they are planning to produce a "major earthquake".

Première diffusion : 1 mai 1971

S1 E6 • Grim Reaper Chameleon

The next Shocker henchman to attack Kamen Rider is ChameleonMan, with the ability to control color! Attacking Ex-navy Major Sanada, what is his goal? A fierce struggle with Shocker ensues!

Première diffusion : 8 mai 1971

S1 E7 • Duel With Grim Reaper Chameleon! World Fair Impression

Chameleon Man's target is Kamen Rider, who infiltrated Shocker's headquarters. Takeshi fails and Admiral Sunada, and the Nazi Secret, were captured! The terrible object from Tokyo...

Première diffusion : 15 mai 1971

S1 E8 • Strangeness! Bee Woman

The next threat facing Kamen Rider is Shocker's newest creation, BeeWoman! People mysteriously disappear after getting glasses from a certain optician. What is the secret behind these glasses? What is Shocker planning?

Première diffusion : 22 mai 1971

S1 E9 • The Terrifying Cobra Man

Shocker has a new plot to target the heroic Kamen Rider. The monster CobraMan. CobraMan attacks the Ministry of Finance's treasury. Kamen Rider follows his grassy tracks to chase after him.

Première diffusion : 29 mai 1971

S1 E10 • The Revived Cobra Man

Cobra Man is injected with blood from puppies and is brought back to life to continue Shocker's plan to steal national gold reserves.

Première diffusion : 5 juin 1971

S1 E11 • Bloodsucking Monster Gebacondor

Shocker has created a new threat to defeat Kamen Rider. ViolentCondor He drinks the blood of young women and his strength surpasses Kamen Rider's. White wedding dresses are being stained with red blood.

Première diffusion : 12 juin 1971

S1 E12 • Murderous Yamogelas

Shocker has constructed a new threat to defeat Kamen Rider. GeckoGelas. With the power of Professor Shirakawa's Danger Light, Shocker once again threatens humanity.

Première diffusion : 19 juin 1971

S1 E13 • Lizardron and the Big Monster Army

Resurrected Bat Man and Scorpion Man fail to infiltrate an Atomic Energy Research Lab because it's protected by an electric barrier. Hearing this the Leader orders their scientists to deploy their "Barrier Destruction Ball." Because of its weight and area of effect, however, such a weapon can't presently be used by any of Shocker's monsters. They identify arrogant soccer player Ken Nomoto whose phenomenal kicking power makes him an ideal subject for the new monster they need to use the Barrier Destruction Ball. Shocker's resurrected monsters are sent to capture him, and once he's in their clutches Ken is modified into the monster Tokageron.

Première diffusion : 26 juin 1971

S1 E14 • Raid of the Demon Sabotegron

Hongo saved Tokyo from a horrible fate at the hands of Shocker.But Hongo can not rest while Shocker's plans to conquer the world grows stronger every day. For justice, and for everlasting peace, Kamen Rider will continue his fight until the very end. Debuting this episode, a new Kamen Rider appears! With three new leading ladies, and more excitement, Thrills, and Action!

Première diffusion : 3 juillet 1971

S1 E15 • Counterattack, Sabotegron

Kamen Rider is in danger! Will he meet his end at the hands of Shocker, and CactoGuron? Shocker has a new threat in store for Kamen Rider: The monster, CactoGuron. Sent from Shocker's branch in Mexico, the monster CactoGuron uses special cactus bombs, called "Mexican Roses," to defeat Kamen Rider. It will be a fight to the death with CactoGuron.

Première diffusion : 10 juillet 1971

S1 E16 • Wrestler of the Devil, Pirasaurus

Shocker's discovered a living specimen of a prehistoric creature called the Pirasaurus which can give off an extremely toxic mist. It's so toxic it kills the very modified human given its poison, however, and Shocker targets a wrestler as being a human strong enough to survive it.

Première diffusion : 17 juillet 1971

S1 E17 • Death Match in the Ring: Defeat! Pirasaurus

Première diffusion : 24 juillet 1971

S1 E18 • Fossil Man: Mandanger

Première diffusion : 31 juillet 1971

S1 E19 • Monster Crabbubbler Appears in Hokkaido

Première diffusion : 7 août 1971

S1 E20 • Fire-Breathing Caterpillar Monster Dokugander

Première diffusion : 14 août 1971

S1 E21 • Dokugander, Confrontation at Osaka Castle!

Première diffusion : 21 août 1971

S1 E22 • Suspicious Merman Amazonia

Première diffusion : 28 août 1971

S1 E23 • Sky-Flying Monster Musasabedol

Première diffusion : 4 septembre 1971

S1 E24 • Deadly Poison Monster Mushroommolg's Sortie!

Première diffusion : 11 septembre 1971

S1 E25 • Defeat Mushroommolg!

Première diffusion : 18 septembre 1971

S1 E26 • The Terrifying Antlion

Première diffusion : 25 septembre 1971

S1 E27 • Mukadelas Monster Classroom

Première diffusion : 2 octobre 1971

S1 E28 • Underground Monster Molerang

Première diffusion : 9 octobre 1971

S1 E29 • Electric Monster Jellyfishdall

Première diffusion : 16 octobre 1971

S1 E30 • Revived Fossil, Bloodsucking Trilobite

Première diffusion : 23 octobre 1971

S1 E31 • Deathmatch! Anteater Demon Arigabari

Première diffusion : 30 octobre 1971

S1 E32 • Cannibal Flower Dokudalian

Première diffusion : 6 novembre 1971

S1 E33 • Steel Monster Armadillong

Première diffusion : 13 novembre 1971

S1 E34 • Japan in Danger! Toadgiller's Invasion

Première diffusion : 20 novembre 1971

S1 E35 • Murderous Ant Queen, Archimedes

Première diffusion : 27 novembre 1971

S1 E36 • Resurrected Mummy Monster, Egyptus

Première diffusion : 4 décembre 1971

S1 E37 • Poisonous Gas Monster Trickabuto's G-Plan

Première diffusion : 11 décembre 1971

S1 E38 • Lightning Monster Rayking's World Darkness Plan

Première diffusion : 18 décembre 1971

S1 E39 • Monster Wolf Man's Huge Murder Party

Première diffusion : 25 décembre 1971

S1 E40 • Deathmatch! Monster Snowman vs. Two Riders

Première diffusion : 1 janvier 1972

S1 E41 • Magma Monster Ghoster, Decisive Battle at Sakurajima

Première diffusion : 8 janvier 1972

S1 E42 • The Devil's Messenger, Mysterious Fly Man

Première diffusion : 15 janvier 1972

S1 E43 • Mysterious Birdman Pranodon's Attack

Première diffusion : 22 janvier 1972

S1 E44 • Graveyard Monster Moldbinga

Première diffusion : 29 janvier 1972

S1 E45 • Monster Namewhale's Gas Explosion Plan

Première diffusion : 5 février 1972

S1 E46 • Showdown!! Snow Mountain Monster Bearconger

Première diffusion : 12 février 1972

S1 E47 • The Death-Calling Ice Devil Todogiller

Première diffusion : 19 février 1972

S1 E48 • Bloodsucking Marsh, Leechguerilla

Première diffusion : 26 février 1972

S1 E49 • Cannibal Monster Sea Anemone

Première diffusion : 4 mars 1972

S1 E50 • Monster Turtlestone's Murderous Aurora Program

Première diffusion : 11 mars 1972