Percy Jackson, now in his final year of high school, wants to attend New Rome University with Annabeth. To be accepted, he must obtain three recommendation letters from the gods. For his first quest, he must recover the stolen Chalice of the Gods, a magical cup that grants immortality to mortals.
With Annabeth and Grover, Percy investigates divine suspects in New York and discovers that the chalice was taken by Geras, the god of old age. Instead of fighting him, Percy understands Geras’s role in the natural cycle of life and shows respect for aging.
Impressed, Geras returns the chalice, and Percy completes his mission peacefully. He earns his first recommendation letter, bringing him closer to his dream of going to college.