It follows the story of young demigod, Percy Jackson, and his friends, as they set out on a quest to retrieve the Golden Fleece and save Camp Half-Blood and the Olympian gods who are losing their immortality due to Luke threatening Zeus and having help on his side. Meanwhile, the trio meets various mythical creatures and old heroes on their adventurous and dangerous journey from New York city all the way into the Bermuda Triangle while battling a mythical monster which poses the greatest threat, a giant cyclops called Polyphemus who was released by Luke himself.