"Learning To Fall," the 150th produced episode of One Tree Hill (Season 7, Episode 20), features intense personal drama, including Brooke confronting a betrayal by her mother and Alex while Quinn faces an obsessed Katie. Directed by Greg Prange and written by Shaina Fewell and Renee Intlekofer, the episode also explores the aftermath of Lydia's death for Nathan and Haley. For a detailed breakdown, visit One Tree Hill Wiki . Learning to Fall | One Tree Hill Wiki | Fandom