Paige has not really been what you would call a 'good' girl. She is quite a free spirit as an adult, and when she takes a trip back to her teenage past courtesy of Leo, we find that she was a pretty difficult young lady as well, but nothing out of the ordinary for most teens.
Her parents can't seem to control her, nor can they seem to understand her, particularly her tantrums, refusal to go to school and not liking or listening to any of their rules. All in a day's work for most parents but Mr. and Mrs. Matthews wouldn't be alone in being close to the end of their rope with a teenager!
As the family are driving along, they are having quite a heated argument when they are involved in a car accident. Paige's parents are killed but she is miraculously thrown clear and is relatively unscathed.
Leo is able to show her that the reason she was thrown free of the wreckage was because she orbed out and also able to prove that the accident would have happened, even if the argument hadn't been taking place. Paige feels a great deal better.
The end is pretty cheesy, but it lifts Paige's burdens, so that's the main thing.