Las películas de Percy Jackson se basan libremente en las novelas con el mismo nombre.
At the top of the Empire State Building, Zeus meets Poseidon, accusing Poseidon's demigod son, Percy Jackson, of stealing Zeus’ master lightning bolt. Poseidon reminds him that Percy is unaware of his true identity, but Zeus declares that unless his master bolt is returned to Mount Olympus in two weeks' time, war will be waged between all the gods.
Percy Jackson and his friends face off against cannibal giants at school and soon learn that Camp Half-Blood is under attack by a mysterious enemy that they may not be able to vanquish.