3,000 years ago, the brothers Castor and Pollux were granted immortality by Zeus. Today they serve him on Earth. Sent to capture a messenger fallen from Olympus, the brothers accidentally release one of the fiercest prisoners of Hades, a cursed, ravaged soul with a millennia-old grudge! Now in an adventure that takes them across Europe and to an island off the coast of Greece, Castor and Pollux must track and capture this being before his rampant rage yields irreversible damage to the balance between Olympus and the Earth. - Collects Olympus #1-4.