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

After Lucas and Keith learn of Dan's হৃদয় attack, they return to বৃক্ষ পাহাড় 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 হৃদয় attack, he convinces Lucas to সরানো 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)...