1. The Strongest Man

Kagami Arata, a member of ZECT, meets Tendo Soji, who has been training his entire life waiting for the Kabuto Zecter. As a Worm attacks a young girl, Kagami attempts to call the Kabuto Zecter but it flies to the hands of the strange man, Tendo Soji.

2. The First Two-Step Transformation

Tendo uses the second form of Kabuto, known as "Rider Form" by using a process called "Cast Off". Kagami tries to understand Tendo and why he believes he is destined to be great.

3. I am Justice!!

A woman named Yuki is attacked by the Lanpyris Worm and impersonated, but she survives so now there are two Yukis running around. More intrigue between Tendo & Kagami, who is quickly falling out of favor with ZECT, plus a fight between Kabuto and a new kind of Worm at an amusement park.

4. Love Explanation!!

Kagami must face the tough truth about the person his younger brother really is. Tendo confronts Kagami and tells him that he will defeat all Worms, including Kagami's brother, Bellcricetus Worm. In the end, Kagami is left with the toughest choice of his life.

5. Order to Capture!!

The connection between Hiyori and Tendo is seemingly discovered as Tendo makes a promise to Hiyori that he might have to break after ZECT discovers the identity of Kabuto.

6. My Flower

Tendo plans his escape from ZECT with the help of Kagami. After escaping, Kagami is sent to meet Hiyori, and Tendo must defeat two Worms that are impersonating ZECT members.

7. No. 2's New Arrival

So Yaguruma, also known as Kamen Rider TheBee, arrives from ZECT HQ with his own ZECT Trooper team known as Shadow. Kagami warns Tendo to stay out of ZECT affairs now that a new Kamen Rider is here. After saving a wedding and fighting a pair of Worm, TheBee then asks Kabuto about joining them and ZECT, but Kabuto refuses, resulting in a showdown between the Riders.

8. Angry Tofu

Due to being upstaged by Tendo, Yaguruma loses his cool and begins trying to defeat Kabuto once and for all. After seemingly destroying the Zect Belt, Hiyori remembers more about her past and the boy she saw with a rider belt.

9. The Bee's Insanity!!

Yaguruma discovers that Tendo is alive and well, and so is the Rider Belt. Furious, he and Tendo fight once again, but this time, Yaguruma goes insane and injures his fellow comrades in the process. Ideals lost, the TheBee Zecter leaves him for Arata Kagami.

10. I'm Not Your Friend

Kagami basks in the power of the TheBee Zecter and the new position of Shadow's captain. However, his mission is to defeat Kabuto and after fighting him, Kagami realizes that there is something far more important to him than being a Rider. After this, he gives up the TheBee Zecter along with the title of Kamen Rider TheBee.

11. The Burning Gokon

Tendo constantly tells Kagami that he has forgotten something important. Kagami does not understand this, but after being saved from a Worm, Tendo asks him why he joined ZECT. Kagami, still puzzled, watches in shock as Daisuke Kazama, a makeup artist, transforms into Kamen Rider Drake.

12. The Makeup Thousand-Man Cut

Tendo and Daisuke have a contest to see who can get the most girls to follow them in one day. Despite that Tendo did nothing but scratch cards all day, he wins the contest as all the girls collected by Daisuke run to Tendo as they all know who he is. Kagami finally realizes that Tendo was trying to tell him to remember his promise to fight Worms.

13. The Team Dissolves

Yaguruma returns with a new vigor and is determined to protect Shadow because someone has been killing off Shadow members one by one. Shun Kageyama believes it to be Yaguruma who was the killer, but in the end is proven false. However, Kageyama is chosen to be the new Kamen Rider TheBee.

14. Back of the Back of the Back

Kagami is marked as the traitor by Kageyama, and is chased across town by the entire team of Shadow. This seemingly perfect case is broken when Kageyama reveals that he was just using Kagami as bait to lure out the real traitor. A Zect operative shoots Kagami who is saved by tendo at the last second, who reveals that one of Kageyama's troops is actually the traitor, the only one who could see him when he Clocked Up to save Kagami. In the end Drake, TheBee, and Kabuto have a three-way battle.

15. The Monster Noted Doctor!?

Kagami feels betrayed by ZECT and takes a leave to try and solve his own mission. Drake and Kabuto secretly back him up and they discover that there are multiple Worms impersonating the same person, and they do not try to kill each other. Tendo joins ZECT in order to find out more about this, and is automatically appointed as Shadow's leader.

16. Unexpected Storm

Realizing that there were three Worms mimicking the same man all along, Drake and Kabuto work together to defeat them. Kagami's confidence is restored as thinks that he destroyed a Worm by himself. Masato Mishima temporarily takes over as TheBee as Kageyama failed to do his job.

17. Restored Memories!!

Gon is hurt as Daisuke constantly ignores her and mistreats her, and so she runs off to Hiyori. However, after being attacked by a Worm, she hits her head and recalls some of her memories. In the end, Gon gets captured by ZECT.

18. Farewell, Gon...

Due to an attack by a Worm from Gon's past, Gon's memories are restored, at the cost of losing her memories of being Gon; and with Daisuke. She returns to her mother and Daisuke leaves for an unknown place, realizing that it was for the best.

19. Scorpion Millionaire

A new man by the name of Tsurugi Kamishiro appears, and he is seemingly as arrogant as Tendo. After competing with Tendo in all manners of sports, he meets Tendo at the top of the roof, ready to fight a Worm. It is then shown that he is Kamen Rider Sasword.

20. Eh, Jiiya?

Tsurugi becomes the next target of the Phantom Thief Shadow, whose actual goal is to lure the Worm that only targets criminals out. Tsurugi causes a traffic accident which injures Juka, and so Tendo punches him. After realizing Tendo also has a sister, he apologizes. After destroying the Sepultura Worm with a Rider Slash, Sasword transforms into the Scorpio Worm, the very same Worm that killed his sister.

21. VS Stag Beetle

ZECT has made a new Zecter known as the Gatack Zecter. Due to its immense power, no one is able to use it and Tadokoro is badly hurt trying to tame the Zecter. Elsewhere, Kagami has made friends with a young boy who seems to be hiding something.

22. Birth of a Special Compilation

Kagami tries his hand at taming the Gatack Zecter but is badly hurt in the process. After discovering the secret of the young boy Kagami met, he is seemingly killed, until the Gatack Zecter is placed in his hands. Using its power, Kagami is able to become Kamen Rider Gatack. Kagami wins his first battle and discovers that not all Worms are necessarily evil.

23. Episode 23

24. Episode 24

25. Episode 25

26. Episode 26

27. Episode 27

28. Episode 28

29. Episode 29

30. Episode 30

31. Episode 31

32. Episode 32

33. Episode 33

34. Episode 34

35. Episode 35

36. Episode 36

37. Episode 37

38. Episode 38

39. Episode 39

40. Episode 40

41. Episode 41

42. Episode 42

43. Episode 43

44. Episode 44

45. Episode 45

46. Episode 46

47. Episode 47

48. Episode 48

49. Path of Heaven

Arata rushes to stop Masato's plans of using a meteorite to drain Dark Kabuto of his powers. As he reaches the area of the final battle, he finds Masato and Negishi conducting a broadcast all around the planet. Unbeknown to the humans, the signals sent out by the broadcast are composed of Dark Kabuto's drained power and causing the humans to become Natives. As Arata lays defeated, Soji appears, after going one-on-one with Masato, Arata regains his strength and joins Souji in a double team on Masato for the final battle.