A school year makes all the difference for half-brothers Nathan and Lucas Scott. Now they bond as brothers. To protect those he loves, Lucas moves in with Dan. Brooke and Peyton mend their friendship and begin a year of romantic turmoil for both. Nathan and Haley's marriage frays. Newcomers to Tree Hill High push emotions into high gear. In the background is the vindictive Dan Scott, controlling others like an evil puppet master. But there are some...