Although Lucas (Chad Michael Murray) takes Anna (Daniella Alonso) as his date to the Tree Hill High Formal, he finds himself with Brooke (Sophia Bush) at the end of the night. Meanwhile, Haley's (Bethany Joy Lenz) musical obligations to Chris (guest star Tyler Hilton) cause her to arrive late to the formal, which angers Nathan (James Lafferty). Peyton (Hilarie Burton) finds herself struggling with the growing temptation to turn to drugs.