The Lightning Thief tells the story of twelve-year-old Percy Jackson. On the first day of summer, Percy learns that he is half-human,half-god. He is taken to Camp Half-Blood in New York. At camp, Percy learns that his father is Poseidon, the god of the Sea.
When Zeus’s master bolt is stolen, Poseidon is blamed. Zeus tells Poseidon that he will declare war if the bolt is not returned to Mount Olympus by the summer solstice.