Senior year. A time to grow up, to forget, to forgive, to dream, to learn to love all over again. People come together, except Dan, consumed by anger as he tracks down whoever started the fire that almost took his life. Tree Hill is rocked by powerful new events, the good, the bad and the catastrophic. The good: Haley fights to save her marriage, Peyton comes to terms with her birth mother, Brooke creates a hot clothing line, and Keith comes home. The bad: Dan gets a rival for worst person in Tree Hill, a conniving redhead named Rachel, the new girl at school. The catastrophic: Tragedy strikes Tree Hill High, and suddenly who wins the cheerleading tournament or basketball championship seems insignificant compared to who lives. And who doesnt.