Hero learns the only way to unlock his destiny is by taking the life of someone he loves when he and Medea travel to the Temple of Aphrodite; at the same time, Medea's sister, a Magi warrior and cold-blooded killer, shows up to reclaim her sacred ring.

Hero and Ariadne develop feelings for one another during their journey to Olympus. Meanwhile, Lykos and Aegeus are back in Athens being held in dank prison caves where they must hide their identities, or suffer the terrifying rage of the other inmates.