Spectreman

Spectreman (スペクトルマン, Supekutoruman) is a science fiction tokusatsu kaiju kyodai hero TV series produced by P Productions and Krantz Films and created by producer Souji Ushio. The series aired on Fuji TV from January 2, 1971 to March 25, 1972 with a total of 63 episodes (divided into three segments), not counting the pre-series pilot episode. This was the first major Japanese superhero show of the 1970s.

Banished from the peaceful and highly advanced simian Planet E, the mutant mad scientist Dr. Gori and his brutish gorilla-like assistant Karras (Ra in the Japanese version) search for a new world to rule after Gori's plot to conquer Planet E had been foiled by its government. Traveling to Earth in their flying saucer, the blond alien apeman is captivated by its beauty but appalled by its inhabitants' misuse of its environment, leading to severe pollution (a huge topic back when this series was made, since Tokyo was the most polluted city in the world at the time), so humankind must be quickly conquered if this planet is to remain habitable. Gori therefore plots, rather ironically, to use the pollution that is plaguing Earth to create horrible, giant, rampaging monsters to wipe out and/or enslave humankind.

Hope comes in the form of the Nebula 71 Star, an artificial satellite resembling twin planet Saturns joined together that observes Earth incognito. Fearing that Gori may eventually make Earth uninhabitable, they dispatch Spectreman, their super-cyborg agent, to battle the menace of the mad apeman. Spectreman disguises himself as a Japanese man named Jôji Gamô to walk among the humans and scout out Gori's weekly menace for the Nebula 71 Star. He works with a government-run group called the Pollution G-Men, run by Chief Kurata. This group investigates phenomena involving pollution, but they do not (until late in the show's run) have the facilities to handle giant monsters, so unbeknownst to them, their comical-yet-mysterious teammate Jòji disappears on them, only to help them as Spectreman!

As the series comes to a conclusion, Dr. Gori's subordinates - and even Ra - are largely defeated, forcing the mad scientist to face Spectreman by himself in the last episode. While the hero tries to convince him that his remarkable intelligence should be put at the service of good rather than be used for destruction and tyranny, Gori commits suicide after replying that he would rather die than live with such an inferior and self-destructive race as the humans.