The world in 2567, everything is slowly drying up! Humanity also gradually disappears and is in danger of being destroyed by the invasion of alien forces. The Earth over the years has accumulated into an energy core and that is the origin of life on Earth. The alien forces are searching for and occupying it. Some scientists have connected with the soul of the Earth and invented mechanical brains, they put them in high-tech tanks. Therefore, the tanks have been awakened and accompanied by the warriors chosen by Earth to protect the Earth and life. You are a warrior of the Earth, Go and protect the Planet!