Penny more than sometimes wishes she could go back in time and changed how the story went with her used-to-be best friend Luke, before she learned the hard way that not only does a relationship ruin a friendship, an attempt at it would also result in the same outcome. Penny doesn't own up to it, but she would die to get a single chance to be in Natalie's position as Luke's girlfriend for just one day. Then come an accident that leaves Penny wishing she hadn't made that wish.