S3, E4: It's party time in Tree Hill. A masquerade ball at the club Tric provides the perfect opportunity for Haley to win back Nathan's heart and for Brooke to seduce Lucas.Members of the punk-pop sensation FALL OUT BOY (themselves) perform amidst the costumed madness, while Peyton tries to accept her recently revealed birth mother. Meanwhile, Dan gives Deb an ultimatum, but he soon discovers she's a much more worthy opponent than he thought.