"The Year: 2017. Humanity has built settlements throughout the solar system to begin the conquest of unknown lands with new challenges and new dangers. This is the setting for our story.
When the Martian settlement is attacked without warning by an immense insect-like monster, a colossal silver humanoid appears to battle the beast.
The Super GUTS Team is a seven person fighting force, as intelligent as they are courageous. Their task; to investigate unusual phenomena and protect mankind from overwhelming danger.
Agent ASUKA of the Super GUTS Team, discoverer of the ancient secret ability to transform himself into a gigantic warrior with powers unknown on planet Earth, now ready to wage war against the marauding mastodons of destruction who would threaten human kind."