Episode 17
Don and Pancho decided to ask Dr. Dairi to build Mechadon 2 in order to win against Jeeg. Dr. Okura appears, and asserts that Mechadon 2 needs an energy amplification device. Don and Pancho took his words seriously and removed the amplification device from the Big Shooter.
Aired 25/01/1976EP 17 - Episode 17

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.