Peyton returns to school, but she breaks down; Brooke's fashions are a hit at the local show; Nathan is cornered into a no-win situation by Daunte; Deb takes drastic action for her addiction.

Nathan struggles with money problems and reluctantly asks Dan for help; Brooke learns the new man in her life is also her new English teacher; Peyton gets help from an unexpected source; and Lucas returns to the Ravens just in time to help ...

Nathan gets two surprises in a row, and everyone is eager to share their advice with him; Deb also shares something she picked up; and Brooke decides to celebrate. Peyton's stalker (her brother) attacks her and her real brother saves h...

Rumor surfaces that Brooke might be pregnant, causing Karen to worry as she fears that the baby might be Lucas'. Meanwhile, Rachel continues to get closer to Nathan when she confesses that she saw Keith during the accident.

Peyton spends more time getting to know her newfound brother, Derek. Meanwhile, Lucas gives up on his love for Brooke and Rachel tries to start a romance with Nathan.

It's her eighteenth birthday, but Brooke soon realizes that she has no one but Rachel to celebrate it with. Meanwhile, Nathan continues to struggle with memories of the accident and Dan continues to be haunted by remorse over his actio...

In the fourth season premiere, the residents of Tree Hill must deal with the aftermath of the shocking accident that left everyone without words. In the midst of all the chaos, Dan extends his help to Karen now that she is pregnant, Lucas a...

The Tree Hill residents are forced to face their fears as Dan turns over on a new leaf and Brooke making the hardest decision of her life. In the meantime, Haley's career takes a turn and Peyton is visited by somebody from her past. Mo...

Lucas receives some devastating news from Lindsey. Brooke's baby undergoes emergency surgery. Haley makes a decision about recording a new album. Skills and Nathan attempt a turn-around of the Ravens' season and Lucas tells Peyton...

Lucas learns that Dan’s life my be in danger due to his heart condition and heads out to investigate. Haley struggles with letting Dan be a part of Jamie’s life while Nathan helps Quentin reinvent his game. Meanwhile, Brooke has trouble bal...

Lindsey returns to Tree Hill for Jamie's fifth birthday party, giving Lucas hope for their relationship. Brooke and Peyton prepare for life with a new baby. Meanwhile, Dan tries to insinuate himself back into the lives of his family, u...

Nathan and Haley have learned from the mistakes with the nanny, so they decide to interview potential nannies or mannies, but it goes in a completely different way. Meanwhile Brooke still wants to go ahead with adopting a baby. Mouth and Mi...

Everyone comes to terms on what they want, what they they hope for. Nathan and Haley slowly come back to loving each other, while Brooke feels she is ready to be a mother, and the words; " someday you'll come back home... " ,...

Lucas and Lindsey's seemingly perfect wedding day goes terribly wrong. Nanny Carrie shows up with an unsurprising motive. Dan shows up to furious in-laws. Nathan tries to deal with the separation from Haley. Karen and Lily return.

On the eve of Lucas and Lindsey's wedding, they conspire to save Nathan and Haley's marriage; Brooke pairs Peyton with an old boyfriend; Rachel and Dan return to Tree Hill.

Brooke runs into someone from her past while on a trip to New York with the Tric bartender, Owen. Nathan and Lucas attend Dan's hearing while they try to protect Jamie from him. Mia gets an offer from a major record label and in the me...