It has been 5 years since Gorgom was defeated. Minami Kotaro has gotten a job of a helicopter pilot in a business owned by the Sahara family. Minami Kotaro is later captured by the Crisis Empire and forced to serve them. When Kotaro refused, his Kingstone was destroyed and he was thrown into space where the sun's radiation mutated his Kingstone and he mutated into Kamen Rider BLACK RX. With his new powers, he battles the Crisis Empire and thwarts their plans to take over Earth.
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Episode 1
Episode 2
Episode 3
Episode 4
Episode 5
Episode 6
Episode 7
Episode 8
Episode 9
Episode 10
Episode 11
Episode 12
Episode 13
Episode 14
Episode 15
Episode 16
Episode 17
Episode 18
Episode 19
Episode 20
Episode 21
Episode 22
Episode 23
Episode 24
Episode 25
Episode 26
Episode 27
Episode 28
Episode 29
Episode 30
Episode 31
Episode 32
Episode 33
Episode 34
Episode 35
Episode 36
Episode 37
Episode 38
Episode 39
Episode 40
Episode 41
Episode 42
Episode 43
Episode 44
Episode 45
Episode 46
Episode 47