A Doggler transforms a woman into a fake, evil Mio to lure Takeru into a Tube trap.

Mio Who Has Become a Demon

Ryôsuke Kaizu

Kouichi Kusakari

Issei Hirota

Yuki Nagata

Kanako Maeda

Hayato Tani

Seizo Kato

Mina Asami

Keijirō Shiga

Yoshinori Okamoto

Kaori Kubota

Takuzō Kamiyama

Kaoru Shinoda

Shunta Fuchino

Hiroshi Takeda

Hirohisa Soda

Shohei Tôjô

The Grotto of the Boy Monster

The Winds and Clouds of an Aura Storm!

Five youths begin their battle against the underground forces of Tube as Maskman after they begin a war with the surface with the abduction of the mysterious Mio.

The Mysterious, Beautiful Runaway

Takeru abandons Commander Sugata's Aura Power training when he receives a message from Mio about her survival and current whereabouts as Tube prepares to punish her.

Strange! The Dark Underground Castle

As Emperor Zeba plunges the world into eternal darkness, the Maskman must complete their Aura Power training, even as Prince Igum decides to face Takeru for the shame Mio has brought him.

The First Step into the Unknown

The Maskman must save a boy and his father trapped within a tunnel transformed by Oyoboo into an endless Medius tunnel.

Burn! F1 Spirits!

Akira's teammates become frustrated with his childish behavior, and he tries to prove himself as Skull Doggler and Fumin start swapping people's faces.

The Small Swordsman, Blue

While investigating a series of unusual earthquakes in Otaki, Takeru meets a boy who believes he possesses a legendary martial arts move.

The God Hand of Dreams

Kenta encounters a girl who likes him, inspiring Baraba to use a Doggler to sabotage his new love.

Explode! Kenta's Love

Igum uses a special flower to lure out Akira and Momoko to save their teammates after the other Maskman become frozen by a Doggler.

Burn! The Flower's Sword

Takeru unexpectedly summons an alien child to Earth with his Aura, which interferes with Baraba's scheme to cut off the planet's electricity.

Combine! Aura of Life

Igum challenges Takeru to his family's ceremonial Death Ring match, a cage showdown where only one of them will leave the battle alive!

Igam vs. Takeru

Kenta pursues a former ninja from underground who has abducted a crown associated with the truth behind Emperor Zeba.

The Refugee From Underground

Haruka is forced to join in a showdown between Fumin and Oyoboo to defeat a ninja Doggler that can grant the ultimate shinobi power

A Challenge! The Pride of a Shinobi

Kenta investigates an idol with a reporter when he discovers she may be part of a plot to create a stronger army of Ungler Soldiers for Tube.

Chase the Idol!

Akira is dragged underground into a city where he meets children of Tube's empire who only dream of the surface and the sky.

The Great Escape to the Blue Sky!

A flower cared for by Momoko becomes the key to stopping a Doggler's deadly flower that kills as it sprouts.

Farewell, Dear Flower!

Kenta must fight alone against Baraba after the Tube general steals the Aura from his teammates to strengthen his powers.

Deadly! Blazing Baraba

Takeru is lured by Igum into a building transformed into a maze by a Doggler to confuse and wear him down.

Smash it! The Hellish Labyrinth

Haruka gives a doll she formerly owned to a girl who desires it, unknowing of the Doggler hiding within threatening to kill her.

The Dear Bloodsucking Doll!

Anagmas uses his magic to enhance the Tube forces while making Akira lose his memories during a sneak attack.

Apparition! Anagumas

Momoko's pride as a kenpo teacher is tested by a powerful opponent set up by Anagmas as part of a scheme to defeat Maskman and Great Five.

A Trap! The Sinking Giant Robo

With Great Five buried underground, Sugata decides to investigate a rival mecha that has gained infamy for killing its creator.

The Black Shadow of the Misty Valley

With Galaxy Robo in their hands, the Maskman head forth to save Great Five, unknowing of the difficulties of doing so and an unknown key to fully activate their new mecha.

The Maskman are summoned to Inasa where a boy is mutated into a monster by a Doggler as a city friend comes to visit.

Akira enters a martial arts tournament unknowingly controlled by Tube due to a letter he has received from an unexpected writer.

Akira's Lover!?

Kenta encounters a sorrowful girl who is actually a creature working to empower a Doggler while trying to preserve her own short life.

Lives That Disappeared on Hot Sand!

Thief Knight Kiros, a lone wolf of the underground, takes on the Maskman in hopes of defeating them and winning Princess Iaul for himself.

Thief Knight Kiros!

An assault by Kiros draws Takeru away from research for Shot Bomber's replacement, where he finds out the truth about Mio and her current fate.

Mio is Princess Ial!?

The Maskman rush to face a Doggler while their new cannon remains incomplete against the warnings of their head engineer, who has personal ties with their enemy.

The New Lethal Weapon of Friendship

Akira decides to help Baraba's mother reach her son when he decides to partake in a trial to gain the legendary sword of the underground.

Mama!! Baraba's Scream!

Igum attempts to gain the assistance of his family's guardian to increase his power, while Haruka has a crisis in the sudden loss of her own abilities.

It Appears! The Guardian Deity Igam Dragon

Kenta discovers a derelict car of a racing friend he decides to use to cheer him up, even while being chased by Oyoboo for accidentally obtaining a part of Baraba's latest plot.

Oyobu's Lethal Dash

Takeru encounters an underground girl who wants to help him even though she has sworn her love to Kiros.

Takeru!! Severe their Love!

A Doggler takes a human form in order to pursue love with Momoko, under the condition he destroys the Maskman in three days!

The Love and Murderous Intentive Blues

Kiros opens a sealed tomb revealing a powerful Doggler that may be associated with Zeba's greatest secret.

The Mystery of Zeba! The Forbidden Tomb

Igum uses a Doggler to turn twin sisters into a combined menace as they destroy while trying to reunite with one another.

Elimination! The Destructive Twin Girls

Kiros uses a Doggler to remove Kenta's courage, forcing a boy he protected to help him rediscover his dreams to regain it.

Soldiers Who Bet on Their Dreams

Igum devises a plan to go back in time and kill Takeru when he's little, thereby creating a time paradox. The Maskman must stop this plan, while getting to see how Takeru is like when he is a kid.

The Time to Erase Takeru

When a sixth Maskman saves the team from an attack, Takeru investigates to find out why he vanished from their battle with Tube.

Revival! The Mysterious X1 Mask

A famous pianist returning to Japan is suddenly targeted by Tube due to a unknown connection with them and her mysterious benefactor.

Resurrect! The Lovely Melody

Kiros uses a Doggler to transform Haruka and Momoko into evil female thieves stealing wealth to give to Iaul.

Female Thieves Haruka & Momoko

A cowardly boy gains super-strength to defend himself after eating a cave mushroom Baraba wished to harvest for himself.

Fly! The Poem of a Timid Boy

During a revenge attack by Kiros for stopping his previous research, Akira begins to hear a strange chant from underground that makes his eyes go blind.

Akira Loses His Eyesight! The Mysterious Spell

The underground refugees complete a ritual in an attempt to awaken a great hero, but instead awaken a Doggler of the Igum clan who rewards its power to a surprising warrior...

Transform! Underground Empire Swordsman Akira

The Maskman discover the truth behind why Akira was transformed into the Underground Knight Unas as they fight to get him back from Igum's control.

Prince Igam! You're a Woman!

Igum's teacher guides her to a pond where Lethal Doggler was born to gain its power, only to learn a surprising revelation regarding what lies within.

Counterattack! The Bloody Pond's Secret

A dance student of Haruka is abducted to take part in Tube's ceremony to summon victory in their final war on the surface.

The Night Prior to the Attack! The Dance of Death

With no more chances left in Tube, Baraba joins with Kiros to abduct the frozen Iaul in a final chance to defeat Takeru.

Baraba! Death by Treachery

With Kiros possessing Iaul's frozen body, Takeru and Igum both try to get her back in order to control her ultimate fate before the thief knight can thaw her out.

The Revived Princess Ial

Iaul and the Maskman obtain a ball that reveals the truth behind Emperor Zeba, even as he begins his final plan to raise the Underground Castle and cover the world in darkness.

Zeba! His Hair-Raising Secret Identity

As Zeba finally unleashes eternal darkness upon the world, the Maskman must work with the twins of the Igum royal family and complete the restoration of light upon two realms.

The Great Destruction of the Underground Empire Castle!

Commander Sugata discovered the existence of the Royal Underground Empire Tube, a malignant force that desires to dominate the land, which is based underneath Japan.

He recruits five young people, each one specializing in a style of martial arts, and teaches them in the ways of the mystical "Aura Power" energy.

A year after he recruited and trained the Maskmen, Tube is ready to strike.

Mio Who Has Become a Demon

Seasons1

Season 1 Episodes51

Cast15

Crew2

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