It Gets the Worst at Night

S4 E17: The teens of Tree Hill mount a rescue mission to save Mouth from his ill-advised road trip with Rachel. During the journey, Haley and Nathan get a second chance to enjoy the prom, and Lucas and Peyton take their relationship to the next level. Meanwhile, Brooke tells Haley that she lied about stealing the calculus exam, and Nathan struggles with the residue of a past mistake.