Ashes of Dreams You Let Die

S4, E19: Nathan and Haley grow closer, despite the recent scandal. Brooke wonders if a spark might be rekindled with Chase (recurring guest star STEPHEN COLLETTI). Peyton receives a tempting offer that could ultimately take her away from Tree Hill. Mouth reconnects with Gigi (recurring guest star KELSEY CHOW). And Lucas tells Karen that Dan is a murderer, setting off an explosive series of events.