Theseus leads the Greek forces against Hyperion, and kills Lysander. Hyperion ignores the battle, storms through to Mount Tartarus, killing Helios and Cassander and using the bow to release the Titans, with the force of the release knocking the mortals down. Unable to escape the vault, Stavros kills a Titan to buy Theseus time to escape, before sacrificing himself. Zeus leads the gods in a battle against the Titans while Theseus fights Hyperion, and while they are more than a match, the gods are overwhelmed by sheer numbers, with all but Zeus and Poseidon dying. While Zeus collapses the mountain onto the Titans, Theseus kills Hyperion. As the mountain collapses, Zeus ascends to the heavens with Athena's body and a wounded Poseidon. The collapsing mountain decimates Hyperion's forces, and the dying Theseus is rewarded with a place among the immortals.