Seiya, a headstrong street teen, spends his time fighting for cash while he searches for his abducted sister. When one of his fights unwittingly taps into mystical powers he never knew he had, Seiya finds himself thrust into a world of warring saints, ancient magical training, and a reincarnated goddess who needs his protection. If he's to survive, he will need to embrace his destiny and sacrifice everything to take his rightful place among the Knights...

Based on the publishing phenomenon, Percy Jackson and other young demigods continue to fight, but this time in the sea, to fulfill their destinies. To save their world, Percy and his friends must find the fabled and magical Golden Fleece. Embarking on a treacherous odyssey into the uncharted waters of the Sea of Monsters (known to humans as the Bermuda Triangle), they battle terrifying creatures, an army of zombies, and the ultimate Evil.