Everything starts with Commander Sugata, studious of being able them of the mind. He discovers the existence of the Underground Empire Tube, a malignant force that wants to dominate the Land, located in underground Japan. In the beggining, Tube was centered in the Pacific. However, when Zeba assumes the throne, they begin planning to conquer the world. Their goal is to turn the world into a cold and shady planet. To stop them, Sugata recruits 5 young people, each one specialized in a style of martial arts, and showers them with superpowered aura energy.