<P> Season 2 chronicles the remainder of junior year at Tree Hill High . Lucas and Nathan begin to bond as brothers . Peyton experiments with drugs . Both Karen and Keith find new loves , but Keith does n't find happiness when he finds out Dan hired her to break his heart . Haley leaves town to go on tour , breaking Nathan 's heart . Brooke goes on a journey of self - discovery while Peyton falls in love and gets involved with drugs when she has to leave . </P>
<P> Season 2 chronicles the remainder of junior year at Tree Hill High . Lucas and Nathan begin to bond as brothers . Peyton experiments with drugs . Both Karen and Keith find new loves , but Keith does n't find happiness when he finds out Dan hired her to break his heart . Haley leaves town to go on tour , breaking Nathan 's heart . Brooke goes on a journey of self - discovery while Peyton falls in love and gets involved with drugs when she has to leave . </P>
when does haley leave nathan to go on tour
when does haley leave nathan to go on tour
Season 2
Season 2