Zeus arm appeared to the shocked Kouji. Meanwhile, the Kurogane four, Cross, Yasu, Django and Sensei along with Kiku appeared and captured Pygman. It was revealed that Tsubasa, as a biochemist had fixed them up again. Tsubasa explained that with the help of Tetsuya's ghost that she realized that Testuya was warning her of Pygman's plan to reveal the whereabouts of Zeus arm. Zeus arm captures Energer Z. Count Broken, masquerading as Kenzo Kabuto as pilot of Energer Z, escapes hoping that Energer Z will explode as both Energer Z and Zeus arm are photon energies. Meanwhile in Kurogane's house, Pygman escapes and tries to kill Tsubasa. Shiro shielded Tsubasa and acknowledged her as mother.
因縁を断ち切るかのようにエネルガーZに戦いを挑む甲児。苛烈さを増す戦いの中、祖父・十蔵の残した秘密兵器が女将の叫びで空を舞う!熱海を、人々を守れるのか!?マジンガーZ!!
海中发出了通天的光子力能量，在光芒中宙斯的右手从海中浮现出来，分明是矿石的伽帕尼姆矿石仿佛还活着一般慢慢伸向魔神Z。在黑金屋老板娘被再次从地狱边缘复活的黑金五人众和士郎救下了，失措的匹格曼和布罗肯决定引爆能量Z将一切毁灭，但前来夺取光子力能量的机械兽却被装备了新武器的光子力击败。
