Percy Jackson steals. His three-year-old half-sister is sick and only the medicine he steals is keeping her alive. When his parents' money runs out and he gets close to getting caught, he pulls his greatest heist ever: the princess. Annabeth Chase rebels. Her parents drown her in suitors, and she hates every single one. Her latest suitor could be the one...until he kidnaps her.

Percy is an unpopular kid at school who suffers from bullying. Annabeth, on the other hand, has it all: looks, popularity, athleticism, and intelligence. They're best friends. He loves her, she doesn't, until one summer away from each other changes her mind. She falls for Percy, but when she plans to tell him, it's too late. He falls for the new girl at school, Calypso.