The search for Zeus' missing watch turns deadly. Trouble is brewing in the Underworld, as an old friend of Prometheus' meets his destiny.

Orpheus draws closer to Riddy — but she's already become close to somebody else. Hades feels the full force of Zeus' wrath at a gathering of the gods.

On Olympus, Zeus hosts a barbecue for the gods to watch a prophecy being defied. Down in the Underworld, Riddy prepares for her own to be fulfilled.