The series begins after defeating Dr. Hell in battle, facing attacks from Warrior Beasts. Despite being overwhelmed by this new threat, the Great Mazinger was saved by Tetsuya Tsurugi with assistance from the Science Fortress Laboratory. The two battled against the risen Mycenae Empire alongside Great General of Darkness. After his defeat, the Empire brought Dr. Hell back to life as its new military commander and overpowered the Great Mazinger until a stronger Mazinger Z returned for battle. Koji and Tetsuya teamed up to eliminate this threat using their robots and allies. In the final assault on the empire, the Mazinger brothers emerged victorious.
Great Mazinger
The series continues following the defeat of Dr. Hell and encounters from the Warrior Beasts. After being severely damaged by this new threat, Mazinger Z faced imminent destruction but was saved by Great Mazinger. The episode features additional support from...
