A World War II scientist reawakens the robotic replica of a powerful android boy to fight as Metalder as the evil Neroz begins to send forth his troops to conquer the world.

Tsurugi tries to make sense of the world around him and his mission as Metalder even as Neros continues to target him for elimination.

The fair-playing gunman Topgunder decides to take matters into his own hands in facing Metalder on his own without the Neroz Army getting in the way.

Metalder decides to help Topgunder when he flees his execution for his failures in defeating the superhuman machine.

A little girl who wanders into the Ghost Bank becomes assisted by Rhapsody as he protects her from Neros' forces. This is first time Metalder confronts God Neros on his headquarters.

Ryusei must work with Princess Tenko in order to defeat a rival magician turned Neros warrior.

When an earthquake frees several of Neros' biological experiments, one ends up becoming friends with a young girl even as Ryusei and the emperor's forces search for them.

A boy who becomes lost in the woods becomes saved by Ryusei, as all of Neros' Robot Corp searches for his base.

A memoryless girl attaches herself to Ryusei as Neros puts a plan into motion to destroy Metalder mid-transformation.

Neroz hypnotizes Mai's father into destroying Metalder for him as Ryusei tries to save him and defeat the assault of the entire Robot Army.

Metalder and Topgunder head to the headquarters of the Ghost Bank in order to bring an end to the threat of Emperor Neros and his armies once and for all!