"Kamen Raidâ Amazon" 1974

A plane crashes in the Amazon rainforest, leaving young Amazon (Daisuke Yamamoto) stranded without his parents. Soon adopted by an Incan tribe, Amazon becomes a wild child, living off the land. However, Amazon's idyllic existence is cut short when Golgos, the Jyumenki, massacres his village, slaughtering everyone except himself in search for the powerful "GiGi Armlet", which gives the bearer fantastic power. Elder Bago, last of the Incas, gives the GiGi Armlet to Amazon for safekeeping while using his knowledge of Incan science and magic to perform a mystical "operation" on Daisuke, transforming him into the powerful "Kamen Rider Amazon" before he died. Arriving at Japan, Amazon battles Gedon without full knowledge of their reason of pursuing him. Befriending the nephew and niece of Professor Kousaka, Amazon learns the nature of the GiGi Armlet as he defeats Gedon and then the Garander Empire.

Cast:

Tōru Okazaki
Daisuke Yamamoto / Kamen Rider Amazon 

Gorō Naya
Narrator 

Ritsuo Sawa
Ten-Faced Demon Gorgos (voice) 

Yôji Matsuda
Masahiko Okamura 

Akiji Kobayashi
Tōbei Tachibana 

Osamu Saka
The Ruler of Garanda Empire (voice)