Tomica Kizuna Gattai: Earth Granner

Earth Energy is a force generated naturally by the Earth's rotation. A mysterious alien enemy from space known as "Dark Spinner" has invaded Earth in order to steal the Earth Energy and transform it into Dark Energy. The only ones who can stand up to stop them are twin brothers named Raiga and Kuga, who are fighting together with the earth defense team Earth Granner. But will they be able to protect the earth? (Source: Tomica Wiki)The anime centers on the battles between the mysterious alien enemy Dark Spinner and the secret defense unit Earth Granner over Earth Energy, the energy generated from the Earth's rotation.