Kouji and his friends have defeated Dr. Hell and are now enjoying a break, but suddenly a strange prophet appears and warns everyone of an oncoming danger, mechanical beasts never seen before start appearing all around the world wrecking havoc. Its up to Kouji and his Mazinger Z to stand up to this threat but it seems he is vastly outnumber and outmatched.

This film served as an alternative link between the Mazinger Z TV series and the Great Mazinger TV series. It basically introduces Great Mazinger to the audience, as well as his enemies from the Mikene Empire.

Goro briefly returns to Japan after a triumphant campaign in the US. He is heading towards Fukuoka where he played baseball when he was a fifth grader. Having just moved into a new town, this is where Goro faced a critical point in his life. (Source: ANN)

While investigating a sound anomaly across the galaxy, Basara crash-lands on a snowy planet and receives an unfriendly welcome from the local residents. On the planet, he befriends Pedro, a four-year-old boy who watches the Galaxy Network and idolizes Fire Bomber. Basara also discovers that the sound he's searching for is generated by Emilia, a lone Meltrandi struggling to make music of her own. (Source: ANN)

In a tumultuous effort, the Sunagakure ninjas attempt to repel an unforeseen invasion of mysterious armored warriors on the Land of Wind. Shortly afterwards, the same armored troops led by Temujin—a skilled knight of impressive power—ambush Naruto Uzumaki, Sakura Haruno, and Shikamaru Nara, who are on a mission to recover a lost ferret. Naruto and Temujin engage in a fierce fight that ends with both of them falling off a cliff.

Taken aback by their friend's sudden misfortune, Sakura and Shikamaru witness yet another alarming development: a massive moving structure appears out of nowhere, ravaging any trees and rocks in its path. While Sakura sets off to find Naruto, Shikamaru infiltrates the imposing fortress in hopes of learning more about the critical situation. 

Entangled in a relentless conflict, the Konohagakure ninjas join forces with their Sunagakure counterparts to defeat the common enemy. However, amidst the turmoil, a clash between two different visions of an ideal world emerges.

[Written by MAL Rewrite]