Chouseishin Gransazer

After an ancient human civilization was destroyed by extraterrestrial forces billions of years ago, twelve individuals, descended from its warrior class known as "Sazers," awaken their inherited abilities. These individuals organize into four tribes representing the elements: Fire, Wind, Earth, and Water. Initially, the tribes conflict with one another, but upon discovering the shared history of their ancestors, they join forces. Their goal becomes defending Earth from the returning alien threat seeking to annihilate life on the planet.