Lucas Scott embarks on the journey of a lifetime with the woman he chose to love. Nathan Scott continues to work on his comeback as a professional athlete with ambitions to play in the NBA. Brooke's battle with her unscrupulous mother Victoria over the enormously successful apparel line heats up. Haley continues to dream of success in the music business. Skills' and Deb's hook-up threatens to become "un-hooked." Mouth and Millicent wrestle with leaving Tree Hill and Dan's life hangs in the balance.