Dr. Hell launched his full attack. Count Brocken in his flying Ghoul and Pygman using the new submarine Bood. At the Kurogane house, the whole gang has prepared for the final assault. Django and Gamia Q3 were imprisoned by Sensei and Django as ordered by Tsubasa as they can't trust Kenzo Kabuto. Kouji arrives at the place where Dr. Hell and Baron Ashura had issued the one-on-one challenge. Much to his dismay, Baron Ashura was not there and several mechanical beasts are waiting to ambush Mazinger Z. It was revealed that Dr. Hell challenged Kouji to keep him busy so he would not interfere with his attack elsewhere. Pygman tries to take advantage and tried to kill Sayaka. Lori and Loru arrives to stop Pygman and rescue Sayaka. Pygman attacks the Photon laboratory using his control of animals. Manwhile, Kouji is losing the battle with the mechanical beasts.
Dr.ヘル軍団による総攻撃がはじまり、総力戦と化していく。マジンガーZは、苦戦を強いられながらも戦っていた。しかし、そこには甲児のやりきれぬ思いが響いていた…!!
眼看甲儿中了自己的诡计地狱博士马上命令所有的部队向热海进发了，铺天盖地的机械兽军团扑向了光子力研究所，与此同时老板娘也开了她那不为人知的计划……而城市中的铁甲面军团受到了黑金五人众和流氓警察们的夹击纷纷败退，连超级杂兵波斯机器人也加入了战场。
