Abby discovers that this new reality is the result of a cosmic collision of parallel universes that has Abby living an alternate version of her life. And not only that: Abby's life changes every time her parallel self makes a new choice. Meanwhile, her parallel is living out Abby's senior year of high school and falling for someone Abby's never even met. As she struggles to navigate her ever-shifting existence, forced to live out the consequences of a path she didn't choose, Abby must let go of the Plan and learn to focus on the present, without losing sight of who she is, the boy who might...