"Hanging By A Moment" is the thirteenth episode of the first season of One Tree Hill and the 13th produced episode of the series. On their way to pick up Karen from the airport, Keith and Lucas' car collides with an oncoming vehicle and an unconscious Lucas is left fighting for his life. Having witnessed the accident, Dan races Lucas to the hospital and must acknowledge that Lucas is his son in order to save his life. Meanwhile, Peyton decides to tell Brooke about the kiss she and Lucas shared.