Episode 37
When Hiroshi heard Flora's call, he asked Uzuki to launch the Big Shooter to the underground kingdom to have a discussion. However, there was a trap of the Dragon Demon Emperor on the way. Ikima, the robot beast Dodon approaches Hiroshi trapped in the volcano by Amasso's ploy. Flora suffers between fear of the emperor and conscience...
Aired 27/06/1976EP 37 - Episode 37

Koutetsu Jeeg
Hiroshi Shiba is an outstanding car racer whose father is assassinated upon the discovery of the Bronze Bell from an ancient civilization. This Bronze Bell is coveted by Queen Himika who comes from that ancient era; the Yamatai Kingdom, and whose ambitions are to seize the Bell and dominate earth.
Hiroshi is left with a few items from his father which would enable him to morph into a full sized mecha warrior, the Steel Jeeg. With these abilities and the help of his father's brain implanted in a computer and his assistance Miwa "Micchi" Uzuki, they set out to neutralize Himika's plans of world dominion.