A Multitude of Casualties

The Ravens begin basketball practice. New team captain Nathan clashes with Lucas over Haley, and a new cheerleader sets her sights on Lucas. Elsewhere, Dan's mayoral bid takes a surprising turn when an unlikely opponent emerges: Karen.

Chris offers to help Haley. 

Haley talks to Lucas about what to do. 

Peyton hangs out with Ellie more. 

Dans jersey number is retired. 

Brooke doesn't like the new cheerleader. 

An Attempt To Tip the Scales

It's Halloween in Tree Hill and everybody is celebrating at Tric, with special guest band Fall Out Boy. The masquerade ball gives the opportunity to Haley to win back Nathan, while Brooke is trying to seduce Lucas. Also, Peyton decides to face her new mother and get to know her. Meanwhile, Dan uses blackmail to become mayor but things don't turn out as easy as he thought they would when Deb gets in his way.

Brooke and Peyton go to the Halloween party at tric. 

Lucas shows up with a new girl.

Haley dresses as sandy. 

Haley is rescued by batman. 

Batman kisses Haley. 

Nathan tells Chris to help Haley with her music. 

First Day On A Brand New Planet

It seems everyone in Tree Hill has something shocking to share: Nathan tells Haley he might want a divorce, Lucas admits to Dan that he saved his life, and Peyton finds out a secret Ellie's been keeping. Meanwhile, Dan continues to search for the identity of his would-be murderer, and Whitey finds his job security in jeopardy.

Haley and Lucas looks at last years predictions. 

Whitey talks to Haley. 

Mouth "interviews" friends on first day back. 

Haley tries to talk to Nathan. 

Haley and Nathan sit in silence during detention. 

From the Edge of the Deep Blue Sea

Brooke decides to celebrate the start of senior year by hosting an end-of-summer bash at the beach. But not everyone's in the mood to party. Nathan has finally come home from basketball camp, but he makes it clear to Haley that he isn't ready to come home to her. Meanwhile, Peyton reels from the news of her adoption and Lucas tries to cope with Brooke's new rules for dating.

Lucas and Brooke make out. 

Brooke hosts a end of summer party on the beach. 

Haley goes to the party. 

Haley and Nathan talk. 

Season 3 Love You Like An Arsonist

After the fire that destroyed his dealership, Dan's fate hangs in the balance. Did he survive? And if so, will he seek vengeance on those who plotted to destroy him, even if that person turns out to be his first-born son? And Dan isn't the only one in torment. Besides coping with his father's attack, Nathan must deal with Haley's reappearance in Tree Hill and the future of their relationship. Meanwhile, Lucas looks forward to seeing Brooke after a summer apart, and Peyton searches for the truth about the mysterious woman claiming to be her mother.

Lucas and Peyton hang out before everyone comes back. 

Brooke and Lucas talk. 

Brooke kisses Lucas. 

Nathan reads Haley's letter. 

Haley puts her wedding ring on. 

The Leavers Dance

In the second part of the two hour season finale, Lucas and Brooke make a sizzling connection after he finally admits his true feelings for her. Nathan and Deb conspire to desert Dan for good, leading to an explosive conclusion when he discovers their plan. Meanwhile, a long-buried family secret is destined to rock Peyton's world. And at the climax of Dan's numerous deceptions someone sets the dealership on fire... with him in it.

Haley returns to Tree Hill. 

Peyton meets a woman named Ellie. 

Lucas kisses Brooke. 

Dans dealership burns with him in it. 

The Tide That Left and Never Came Back

In the first part of the two-hour season finale, things heat up between Lucas and Brooke after they head to New York for an overnight stay with Haley. Peyton is elated when she gets Jimmy Eat World to perform at TRIC just in time for Jake's release from jail. Meanwhile, Andy invites Karen to spend the summer with him in New Zealand.

Whitey offers Nathan a spot on high flyers. 

Lucas visits Haley. 

Mouth and Erica go dancing. 

Jake leaves Tree Hill.