Episode 22
Suspicious tornadoes occur in Ise Bay, causing damage to ships sailing in the vicinity one after another. Uzuki, who went to investigate with the Big Shooter, loses consciousness after being attacked by the Haniwa phantom Gilara who was lurking in a tornado. Hiroshi that went to the rescue was also caught by Yamata no Orochi, who was waiting for him. Gilara's magic hand approaching the Build Base. Mechadon is the only one they can rely on.
Aired 29/02/1976EP 22 - Episode 22

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.