After failing a team exercise, Garth, pilot of the Pink Leg-Unit, must face his pigheaded self, and an energy vampire monster, both threatening to destroy the Gigabot team.
A mysterious gigatron-powered colossus is heading towards New Neo Tokyo-2, with a limited amount of time, the Gigabot pilots must defeat this new threat, or risk being completely powerless to save the world.
After the citizens of New Neo Tokyo-2 took to the streets to protest, the Gigabot Project is suspended, and replaced by an eco-friendly, and marketable, super robot: The Emerald Unit.
Darkstar, an evil space rock-star, plans to level the Earth, and build a stage for his cosmic concert. To save our planet, the pink pilot, Garth, must evaluate his complicated relationship with his dead father.
While testing a new weapon, the twin pilots, Stephan and Steven, rescue a girl named Chlora, from one of Emperor Jumbo's monsters. Infatuated, Steven ignores Chlora's suspicious interest for the Gigabot Project.
The Gigabot pilots are sent away on a dangerous mission: Defend the Super Government's new Deep Sea Hydroelectric Plant. Unbeknownst to our heroes, the villain has set in motion a plan, to make this mission, their last.
