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.

As Tsurugi tries to gain further control of his mental functions and a search for friends, a warrior from the Armor Corp goes forth to target him.

Tsurugi researches more about Dr. Koga to find out more on who he is as multiple soldiers of God Neroz' army go forth to stop him.

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.

When a man unknowingly working for Neros runs away from one of his schemes, Metalder must help rescue him and his family from Violent Spirit Hidouman with some help from a familiar rival.

An aspiring biker ends up being pursued by a squad of Neros assassins aiming for Metalder. Will Metalder save the biker from a squad of Neros' assassins?

Topgunder returns to help Metalder deal with the assassin Crosslander; while Mai becomes captured by a revived Gamadone!

A troubled member of the Robot Army takes action when Mai gains access to secret information regarding Neroz's true identity.

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.

When a family abandons a litter of puppies on a testing ground of Neros' Armament Army, a member decides to protect them from being attacked.

Hakko encounters a girl who sings to fireflies luring people to be utilized to have their cells taken for Neros' schemes.

Metalder becomes targeted by a squad of roller skaters hired by Neros to attack him in order to discover his weakness.

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

Ryusei protects a man who knows a secret of Neros while being assisted by an unlikely group of friends of Hakko.

With Hakko's life on the line, Tsurugi and the JAC squad must rush forth to save his life, determine an ally's trust, and defeat the plans of Victorious Saint Coolgin.

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

Topgunder lays siege on Neros' forces, leading him into a siege where he becomes fated for a trap to execute him with Metalder!

Mai's father returns from America with vital information associated with Neros' true identity, even as he's targeted by an assassin.

Discovering a connection between Neroz and businessman Gozo Kirihara, Shingo Ogi decides to investigate, leading him into the underworld lord's trap.

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!