Season 1
The Earth Defense Force GEAR was founded to protect Earth from invasion by the Mechanical Empire Garufa. Mankind builds GEAR Fighter Dendoh, the only hope for the universe, to oppose Garufa. While GEAR had chosen pilots themselves, grade schoolers Hokuto Kusanagi and Ginga Izumo end up being chosen by Dendoh itself as it's pilots. They don’t know what to do, but manage to operate Dendoh in the fight against Garufa.
The First Day - Dendoh Launches -
Appear! Unicorn Drill
Knight Ogre Attacks!
The Trembling Spiral City!
Explode! Viper Whip!
Courage of the Leo Circle
Assault! Bull Horn
A New Companion
The Missing Data Weapons
Zero Seconds Before Dendoh's Destruction
Decisive Match! Dendoh vs. Ogre
Omen of Crisis
Ginga's Father Comes Home
No Power!
Ghost Story! The Data Weapons in School
The Demon from the Moon
Lagowe's Teeth
8000 Meter Deep Battle
Resurrected Life
Burn! Ginga!!
Revived Black Knight!
Mother's Secret
Locked Memories
Long Night
In Midst of Flames
The Day Spiral City Falls
Stealthy Shadow
Subaru's Challenge
Hokuto in Danger
Greatest Rival!
Hokuto's Cries, Ginga's Tears
Fly! Subaru!
GEAR's Destruction!
Zero Attack!
Takeoff! To Space
Sea of Storms
The Truth About Arktos
Legend of the Star - And, the Start of a Day