Season Three of One Tree Hill aired its first episode on the WB on October 5, 2005 and ended on May 3, 2006 with the season finale. This season consists of 22 episodes. It was the last season to air on the WB.


"Senior year. A time to grow up, forget, forgive, dream, learn and love all over again. People come together - except Dan, consumed by anger as he tracks down whoever started the fire that almost took his life. Tree Hill is rocked by powerful new events - good, bad and catastrophic. The good: Haley fights to save her marriage. Peyton comes to terms with her birth mother. Brooke creates a hot clothing line, and Keith comes home. The bad: Dan gets a rival for worst person in Tree Hill - a conniving redhead named Rachel, the new girl at school. The catastrophic: Tragedy strikes Tree Hill High, and suddenly winners of the cheerleading tourament or basketball championships seems insignificant compared to who lives...and who doesn't."
- Season Three DVD Blurb


The season chronicles the first half of senior year for Lucas and his high school classmates. Some of the key plot points are:

  • Lucas and Brooke's complicated relationship
  • Peyton dealing with the arrival of her biological mother
  • Nathan and Haley attempting to reconcile after her return from tour
  • The new girl, Rachel, clashing heads with Brooke and seducing Mouth
  • Dan's mayoral candidacy and his quest to discover who tried to kill him in the fire
  • Keith's return to Tree Hill as the prime suspect in arson
  • The residents of Tree Hill attempting to cope with their losses after a school shooting rocks the town


Principal Cast


# Image Title
01 301lucasbrookekiss Like You Like An Arsonist
Lucas awaits Brooke's return to Tree Hill after a summer spent with Peyton. Peyton investigates the mysterious woman who claims to be her mother while Nathan must deal with Haley's reappearance at the same time as the fire at Scott Motors. Dan's fate after the fire is revealed.
02 302brookefire From The Edge Of The Deep Green Sea
Brooke organizes an "End of Summer Beach Party," but soon finds she's the only one in a party mood. Nathan comes home from High Flyers to reconnect with Haley, but he and Lucas are at each other's throats. Meanwhile, Lucas struggles with Brooke's new rules for dating, Peyton tries to come to terms with the new truths about her family, and Dan remembers what happened the night of the fire at his dealership.
03 303lucashaleyschool First Day On A Brand New Planet
It's the first day of senior year and estranged spouses Nathan and Haley have trouble adjusting as classmates. While Brooke continues to play hard-to-get, Lucas learns a troubling secret about Peyton's mom. Meanwhile, Dan closes in on the truth about the dealership fire.
04 304peytonnathan An Attempt to Tip the Scales
It's party time in Tree Hill. A masquerade ball at Tric provides the perfect opportunity for Haley to win back Nathan's heart, and for Brooke to seduce Lucas. Punk-pop sensation "Fall Out Boy" performs amidst the costume madness, while Peyton tries to come to terms with the new mother in her life. Meanwhile, Dan gives Deb an ultimatum, but soon finds she's a much more worthy opponent than he thought.
05 305cheerleaders A Multitude of Casualties
It's Midnight Madness in Tree Hill as the Ravens officially begin basketball practice - with explosive results. New hoops captain Nathan clashes with Lucas over Haley. Brooke fills a vacancy on the cheerleading squad, only to regret her decision when the new girl, Rachel, sets her sights on Lucas. Meanwhile, Dan's bid for mayor takes a surprising turn when an unlikely opponent steps forward.
06 306draft Locked Hearts and Hand Grenades
In an effort to keep her cheerleaders from fighting over the same guys, Brooke devises a "Fantasy Boy Draft." Haley and Peyton butt heads over Nathan, while Lucas has trouble keeping up with the brutal pace of basketball practice. Meanwhile, as the election nears, mayoral candidate Dan clashes with his new opponent.
07 307lucasrachel Champagne For My Real Friends, Real Pain For My Sham Friends
As the fantasy draft dates begin, Brooke finds herself on an unusual double date, while Lucas gets closer to Rachel. Mouth spends time with an old friend and Peyton regrets choices she makes with Ellie. Karen and Deb take their campaigning to new heights.
08 308brooke The Worst Day Since Yesterday
As the town readies for the Ravens' first basketball game, Lucas worries that his head and heart aren't in it. Nathan accuses Lucas of being the Ravens' weak link. Peyton and Haley mend fences to support Brooke in a time of need. When the mayoral race tightens, Dan resorts to a smear campaign.
09 309prisoners How a Resurrection Really Feels
Lucas reveals that he knows who tried to kill Dan in the dealership fire. Brooke, Peyton and Haley find themselves behind bars. Chris Keller convinces Nathan to be his wingman at a high-stakes poker game. The residents of Tree Hill finally choose a mayor.
10 310debnathan Brave New World
Lucas and Peyton take a road trip together to find Ellie. While out of town, Lucas reconnects with a friend from his past. Brooke, Haley and Mouth successfully launch the Clothes Over Bro's website, only to find that demand far exceeds supply. Deb reveals to Nathan that she tried to kill Dan.
11 311keithdan Return of the Future
After losing their second game of the season, the Ravens receive tough love from Whitey. Peyton and Ellie try to recruit rock band Nada Surf for their benefit album. Haley reveals a disturbing fact to Nathan, and Brooke plans a romantic night for Lucas after learning that he submitted her fashion designs to a prestigious competition in New York and a familiar face returns to Tree Hill.
12 312lucas I've Got Dreams to Remember
When a guidance counselor challenges the students of Tree Hill to consider their futures, Nathan and Lucas feel pressured to impress an important basketball scout. Mouth gets caught between Brooke and Rachel, Peyton and Ellie grow closer while finalizing their CD, and Dan tells Haley that Nathan paid Chris Keller to come back into her life.
13 313brookelucas The Wind That Blew My Heart Away
A violent rainstorm knocks out the power in Tree Hill, leading Haley to Nathan's doorstep and Brooke out into the downpour for a dramatic confrontation with Lucas. Peyton finally confronts the truth about Ellie's illness, while Mouth is tempted by his new friend, Rachel. Before morning, secrets are revealed, relationships are tested, and new love gets hotter than ever.
14 314cheerleaders All Tomorrow's Parties
Brooke is forced to grow up in a hurry when her trip to a New York City fashion show prevents her from attending an annual cheerleading tournament. Nathan and Lucas are influenced by the father of an old friend. Struggling with her birth mother's death, Peyton joins Rachel for a night of blowing off steam, and Haley and Nathan use their hotel room as the honeymoon suite they never had.
15 315haleysing Just Watch the Fireworks
When someone unleashes the students' time capsule upon Tree Hill High, Lucas and Mouth must confront a person from their past. Brooke has to deal with the revelation that secrets aren't the only things she exposed in the time capsule. Dan learns to forgive Keith and Haley is forced to reconcile the man Nathan was before with the man he has become, and Peyton's Breast Cancer Benefit Concert at Tric features performances by Haley, Jack's Mannequin and the return of Fall Out Boy.
16 316tutorcenter With Tired Eyes, Tired Minds, Tired Souls, We Slept
A normal day becomes deadly when a despondent student brings a gun to Tree Hill High. While lives hang in the balance, Nathan and Lucas put themselves at risk to protect their friends and loved ones.
17 317lucaskaren Who Will Survive, and What Will Be Left of Them
The aftermath of the school shooting and the death of Jimmy and Keith forces everyone in Tree Hill to examine their lives. Nathan reassesses his relationship with Haley, while Brooke and Rachel join forces to heal the student body. Dan must deal with the ramifications of shooting Keith, while Lucas and Peyton consider the implications of their kiss in the library.
18 318everyone When It Isn't Like It Should Be
Rachel invites the gang to her family's cabin for a weekend getaway. Lucas, Brooke and Nathan conspire to surprise Haley while Peyton receives an unexpected visitor at the cabin. Mouth harbors resentment towards Rachel, and a game of "I Never" reveals a secret. Meanwhile, Karen confronts Dan about Keith's death.
19 319peyton I Slept With Someone In Fall Out Boy And All I Got Was This Stupid Song Written About Me
Lucas struggles with the decision of whether he should play basketball in the wake of Keith's death while Brooke forces Rachel to deal with a dark secret. Nathan and Haley's wedding reprise is put to the test and Peyton decides to visit Pete in Chicago.
20 320mouthrachel Everyday Is a Sunday Evening
It's the weekend of the Coastal Classic, and with Lucas sidelined, Nathan has to step up on the court against an old rival who shows an interest in Haley. Brooke and Mouth plot revenge against Rachel while Dan goes head to head with Nathan's Uncle Cooper. Also, Peyton makes a life-altering decision.
21 321brookelukeasnaley Over the Hills and Far Away
On the night of the rehearsal dinner, Brooke tangles with Haley over Haley's wedding dress. Lucas and Karen return to Tree Hill and Peyton makes a startling discovery.
22 322couple The Show Must Go On
On the eve of their wedding, Nathan worries for Haley's safety while Peyton and Brooke's friendship is tested by a shock confession. Deb tells Dan the truth about the dealership fire when she learns who he thinks was responsible, and Karen finds herself needing Keith more than ever when she makes a startling discovery.


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