The big day has finally arrived and the gang gathers at the hospital to await the birth of Haley and Nathan’s baby. While they wait, they reminisce about the memories they have shared over the years. Watch free, streaming full episodes of One Tree Hill on cwtv.com. One Tree Hill Video: Watch One Tree Hill full episodes, previews, clips, interviews and more video. One Tree Hill takes place in a small North Carolina town, where two estranged half brothers carry on very different lives.