Aiden Greensboro and David De Young are best friends and brothers. One day Aiden discovers that he is an Elementaro: a soldier of the ancient goddess Gaia. Elementaros are environmental defenders with only one goal: to kill the monstrous Cronotians who are trying to enslave the human race with their superior technology. David De Young is a technological savant, seemingly capable of building anything. Ready to go to M.I.T. and escape his abusive father, he discovers he is a Cronotian: soldiers of the ancient god Cronos with only one purpose: to kill the Elementaros: environmental terrorists determined to set humanity back to the stone age. Each of them is convinced their side is righteous and just, and their enemy is a set of evil terrorists, until they are thrust back together...