Reversal! Setting Sun of Bardos!
The Mazinger Corps is defeated. God Scrander came and integrated with Mazinger Z to win against the mechanical beasts. Tsubasa was taken by Kenzo, who was reveled later to be a robot. Baron Ashura went to Kurogane house looking for Tsubasa and decided to burn Kurogane. Back to the Photon labs, Yumi survived the blast but was about to be killed when Sayaka returns with Venus A. Ankokuji and Gamia Q3 went to the rescue and shoots Pygman's body with a decomposing chemical. The chemical was the same chemical used by Dr. Hell to rot off Tristan and Isolde's half bodies.
Aired 19/09/2009EP 25 - Reversal! Setting Sun of Bardos!

Mazinger Edition Z: The Impact!
Set in the near future, humanity enters another energy revolution following the discovery of Photon Power. Derived from the ore discovered under the foothills of Mt. Fuji, its intended use was to solve the world's energy problems with its unimaginable power. Seeking this energy is Dr. Hell, a madman craving world domination who with his subordinates Baron Ashura, Count Brocken and Viscount Pygman, commands an army of mechanical beasts excavated from the ruins of ancient Greece to seize the Photon Power Lab for himself. Meeting the attack head on is the hot-blooded teenager Kabuto Kouji, who pilots the Photon Powered robot built by his grandfather, Mazinger Z. But in this battle between Dr. Hell and the Kabuto family, many legends surrounding the Mycenaean Civilization and Bardos Island, as well as the secrets of Mazinger Z remain shrouded in mystery.
A new series based on the mecha show that started it all, Mazinger Z. Shin Mazinger Shougeki! Z-Hen starts over from the beginning with a new cast, to tell a new story unrelated to the original show.
(Source: shin-mazinger.com)