One Tree Hill - Season 0 Episode 1 Unaired Pilot Where nothing ever changed until one outsider changed everything.
Overview: The Unaired Pilot takes place in the past. It tells the story of Karen and Dan and how she got pregnant. Then, after Dan marries Deb it goes into the future further where Lucas has his first day at Tree Hill High. He meets mouth and others and realizes that maybe basketball is for him. That is until him and Nathan get into a fight about Dan. This is where it all begins.