One Tree Hill - Season 4 Here

: Brooke moves in with Rachel Gatina, faces a cheating scandal on a calculus exam to ensure she graduates, and begins a relationship with a "Clean Teen" named Chase Adams. Key Episodes

: Lucas has a heart attack and is "visited" by Keith while in a coma; Haley is hit by a car. One Tree Hill - Season 4

: Haley and Nathan navigate the challenges of being teen parents after discovering they are expecting a son. Nathan becomes entangled with a loan shark named Daunte, leading to a point-shaving scandal that threatens his basketball future at Duke. : Brooke moves in with Rachel Gatina, faces

: Brooke and Lucas officially break up after she realizes his growing feelings for Peyton. By the middle of the season, Lucas and Peyton finally begin a serious relationship. Nathan becomes entangled with a loan shark named