Starts with a girl walking through a white house and she hits into a room where she sees herself tied to a chair with a bomb underneath it. She then walked up and she’s in the car with her family and they’re moving to a new town. She makes some friends, meets a boy and an enemy. The girl that becomes her enemy has I believe half a spider necklace. She’s a witch. At one point the enemy turns into a dragon and the guy fights her to protect the girl. I remember the friends going to a library. At one point they were at a party and the main character blacked out. I watched this as a kid around 2002 time. It was on On Demand and I haven’t been able to find it.