"Catastrophe And The Cure" is the sixth episode of the ninth and final season of One Tree Hill and the 180th produced in the series. It was broadcast in February 15, 2012. Dan enlists Julian to help in his search for Nathan. Mouth fills Clay in about Nathan, as Haley explains Nathan's disappearance to Jamie. Brooke gets an idea of how to bring patrons to an empty Karen's Café, and Chris Keller confronts Chase about Tara.