After learning that the father he never knew is Poseidon, God of the Sea, Percy Jackson is transferred from boarding school to Camp Half-Blood, a summer camp for demigods, and becomes involved in a quest to prevent a war between the gods.
After giving Athena a makeover Aphrodite becomes jealous of her friend, but she focuses on figuring out how to help a mortal win a race against Atalanta, which will result in either their marriage or his death.