Percy Jackson, an ADHD and a dyslexic boy, struggles to find a school that will except him. With the help of his friend, Grover, he finds out that he is a demigod, but loses his mom on the way. Devastated, Percy and Grover go to Camp Half-Blood where Percy finds out that he is the son of Poseidon. His father and Zeus are fighting because Zeus thinks Poseidon has stole his master bolt. Percy then goes on a quest to find the master bolt with Grover and Annabeth Chase, daughter of Athena. Percy faces Medusa, Hades, and even battle it out with Ares, to get the master bolt. On the way Percy gets his mom back. Percy then goes to Olympus to give back the master bolt and meets his father. He tells everyone about his adventures. The gods think that Cronus is rising. Meanwhile Percy goes back and finds out that Luke, son of Hermes and friend of Percy, is actually a follower of Cronus. Luke then attempts to kill Percy, but fails. This is the beginning of the war between the demigods and Cronus.