The 초 season consisted of 23 episodes and ran from September 21, 2004 to May 24, 2005.

After Lucas and Keith learn of Dan's 심장 attack, they return to 나무, 트리 언덕, 힐 and Dan decides he wants to get to know Lucas. Lucas cautiously enters into a relationship with his father. After Dan learns that Lucas has inherited his hypertrophic cardiomyopathy (HCM), the genetic defect which caused Dan's own 심장 attack, he convinces Lucas to 옮기기 in with him and pays for his medication, keeping his condition a secret. Dan also agrees to stay away from Keith and his girlfriend Jules (guest star, Maria Menounos)...

8.01 || Asleep At Heaven's Gate

Brooke: Before 당신 say another word, 당신 should both know that I just have just come from the city jail, where I was frisked 의해 a large supposedly female cop who was very thorough in her cavity search. Now speak.

Nathan: Is everything okay?
Doctor: Yeah. I just wanna run some tests.

Mia (to Haley): Speaking of slutty, congratulations on being pregnant.

Clay: I just realized that I haven't seen a single person on this 바닷가, 비치 all day...have you?
Quinn: No.
Clay: Do 당신 know what that means? Skinny dipping.

Julian (to Brooke): Get ready for my greased lightning!

Haley:...