Jess is desperate to be with Jason, who lives in another reality. When she switches places with her alternate self, Jess finally gets her chance. The problem is Jason’s already dating another girl. Jess's new step-sister! Can Jess get them to break up before the big dance? Will Jason even want to be with her? Sinister things are going on behind her back that might render her plight meaningless.
Life hasn't been easy since Jess learned she's from an alternate reality. A reality that will soon be destroyed. Life gets more complicated when she learns she has a new foster sister. Herself. Going by her middle name and pretending to be Jess's cousin, Marie takes Jess's room. Then her boyfriend. But the daughter of a corrupt time cop wants more!
Jess's world is turned upside down on her 13th birthday when she learns of her parents' separation. After spending the rest of the summer with her grandparents, Jess returns home for the first day of school only to discover that her friends have abandoned her and everyone thinks she's somebody else. But who is she supposed to be?