Lucas returns from Las Vegas to face a tragedy, as Nathan and Haley struggle to find a way to help Jamie understand the death of someone close to them.

Lucas and Lindsey face a tenuous future, while Nathan receives an offer from a pro basketball team. Haley unwittingly puts Jamie's life in peril, while Brooke struggles with giving up her company. Peyton discovers a dark secret about her new recording artist. Haley learns the truth about Dan, which leads to a final showdown with Carrie.