Saint Seiya - Episode G Requiem

Saint Seiya - Episode G Requiem summary:

The world is wrapped in flames and about to be destroyed by the actions of primordial gods intending to cleanse the planet. While the goddess Athena stands alone in a desperate attempt to contain the worst of the attack, it is up to Seiya, the last Saint standing, to battle the gods and join her to save the earth. The final battle of the Gold Saints is about to begin.