Man was created in the image of God, but what in who's image was he created? Before God created the world in which we live, he had to conquer it. The gods that came before him were complacent and naive. The titans thought they could live in peace in Pangea forever, until the fall of the angels. First God thought he could fashion a better life, and rallied the forces of the angelic titans with rhetoric of hate and division. In the blink of an immortal eye, he armed His army and began systematically carrying out his strategy of deicide. The titans, undisciplined after millenea of complacency, were easy fodder. But God suffered a major setback when his frontline General, Satan, doublecrossed him and gave up major positions and arms to the last bastion of titans. Now, with angels in control of most of Pangea, the only enclave of rebellious titans is behind the well-fortified gates of Eden. But it is only a matter of time before God's forces overwhelm the titans.
Satan has rallied his own elite forces of angels who are also battling against the angels allied with God. It is unclear if he is fighting for the titans, or (more likely) fighting for control of Pangea and to control the heavens and the earth. In a surprise move, Satan was taken captive by God and is currently being marched to his execution at the Sea of Eternity.
The players are the last of the major titans. They control the forces under their domain. Whether it be nature, elemental, emotional or sheer power, these titans weild the power of gods. But with the slaughter of the titans and the new era of angels, the titans have found their powers diminished. Create them similar to super-level powers.
The titans know that their era in the world is over, so they send the players out on a suicide mission: infiltrate the execution of Satan at the Sea of Eternity, kidnap him and try to bring him back alive-- if this can be done, the titans hope to forge an alliance with Satan's elite troops to help defend Eden. Just as importantly, the players need to eliminate the main threat: God-- if at all possible, find him and kill him. Even if they succeed in both these objectives, the titans cannot survive long on Pangea-- but at least they will have left their mark on the new world.