The girls of Tree Hill have a slumber party, at which time secrets are revealed and bonds are made. Meanwhile, Nathan and Lucas road trip to Charlotte for a basketball game, and unknowingly to Lucas, they embark upon free HCM tests, a genetic heart c... (more)ondition that Dan maintains. Karen and Andy have a row.

Daniella Alonso, Kieren Hutchison, Maria Menounos, Michael Copon, Rodney Lee Rodgers, William Haze