The Troopers are reunited, but only physically. Shu's doubts come to the fore as Shiten, now consumed by his armor, battles against the Troopers with overwhelming power.

Searching for information, Nasté discovers references to a Jewel of Life, said to be the key to destroying the netherworld once and for all. The forces of doom overhear this, and refuse to sit idly by.

As the Troopers make their way towards Arago's castle, the forces of Doom spring a trap upon them, scattering them and driving them underground. In that darkness, Seiji must protect Jun and Nasté from Anubis.

Badamon has a plan to deliver the Inferno Armor to Arago, and he needs Lady Kayura's help. However, the Three Warlords have grown jealous of Kayura, and when the trap is set, things don't go as planned.

The fireball shot from the Cannon of Doom races towards Toma, with Ryo on board. Meanwhile, Shiten has a crisis of conscience, hinting at a hidden secret behind the armors.

Dala, wielding a sword charged with the power of Nimbus, Stone, and Torrent, battles against Ryo and Toma. Meanwhile, Badamon, lord of the nether spirits, reveals the true nature of the white armor.

Only Toma of the Heavens remains, but his location is a mystery. The Warlord of Illusions, Rajura, attacks the Troopers, all to lure them to a lake where Toma is supposedly held.

Shiten explains to Nasté and Jun how he came to be both the Warlord of Demons and the wielder of Kaos's staff. Meanwhile, Ryo and Toma have entered the netherworld, and face off against an entire army.

Seiji has been revived, but the other three Samurai Troopers have yet to be found. The group splits up, with Ryo and Jun attempting to revive Shin at the bottom of the Naruto Strait. But the Empire of Doom isn't about to sit idly by.

Arago's power of doom has scattered the Troopers. White Blaze leads Nasté and Jun to Mount Fuji, where Ryo awakens. Unfortunately, Shiten is follows right behind, intent on settling the score.

Ryo and Toma learn the true identity behind "Kaos," who cautions them against falling into Lady Kayura's trap. Regardless, the two must go, if they're to rescue their friends.

Dark omens herald the re-awakening of Arago, the ruler of the netherworld. But where the Empire of Doom appears, so too shall the Samurai Troopers! Ryo is joined by Toma, Shu, Shin, and Seiji, and wearing their legendary armor, they battle against the ...

The modern weapons of the world are useless against the Empire of Doom. Shiten, the Warlord of Demons, steps forward to eliminate the only threat to the Empire--the Samurai Troopers.

Lady Kayura, an overwhelmingly powerful demon from the netherworld, appears and mocks Toma and Ryo over the capture of Seiji, Shin, and Shu. During the battle to lure the remaining two Troopers into the netherworld, a certain staff appears.

Nasté takes Ryo to see her grandfather at the university in order to begin searching for the other Troopers. However, the Warlord of Venom, Naaza, has other plans for Ryo!

A pro wrestling manager scouts Kinzo for the big leagues... but it all turns out to be a gimmick for a match with a beautiful lady wrestler!