Percy, Annabeth, and all of the other campers at Camp Half-Blood work to improve their battle skills by playing a game of Capture the Flag. Unfortunately for Percy, Clarisse and the Ares cabin are included in the game. Still angry at Percy for humiliating her during initiation, Clarisse and her friends from the Ares cabin attack him. Percy, who has little fighting experience, is easily defeated by Clarisse. Annabeth almost steps in to help him, but something unexpected happens.