It's the beginning of the end, with the forces of Dr. Hell throwing their might against the Mazinger Army.

Once a normal kid, Koji Kabuto's destiny began on the day Dr. Hell launched his campaign for world conquest; targeted by gangs, robots and soldiers, Koji survives only when Grandpa Juzo reveals what he's been working on these past 10 years.

The Super Robot Mazinger Z will make Koji transcend humanity and allow him to become a god or a devil; even with his newfound power, Koji may not be able to withstand the might of Baron Ashura.

A bold young man pilots a large robot to fight an evil force plotting to steal new technology to make its mechanized army unstoppable.

Grandpa tutors Koji on how to use Mazinger Z; Count Brocken arrives to do what Baron Ashura could not -- defeat the heroes.

In the aftermath of the battle in which Koji used the photon beam, everyone has questions.