Together with Annabeth and Grover, Percy embarks on a quest to find the Golden Fleece before the malevolent forces close in on Camp Half-Blood. Their journey takes them through treacherous seas filled with monsters, mystical islands, and perilous encounters. Along the way, Percy must confront personal challenges, deepen his understanding of his demigod powers, and face enemies that threaten not only the camp but the entire world of gods and mortals.
As Percy and his friends race against time, they uncover the truth about the Golden Fleece, the real intentions behind its theft, and the looming danger that could disrupt the balance between the human and divine realms.