A love story through dimensions

In universe 56, Emma DeNoire and James Scott make a promise to be together. But they just can't seem to get it right no matter how many parallel universes they're given.

Each choice that the seventeen year olds make opens up into another universe, another lifetime where they could get it right—all of which they can remember living through. A gingerbread cookie given at the Winter Dance determines whether or not Emma alienates her two childhood friends; a note that starts a rumor affects the sobriety of James's best friend Mike; and whether or not Emma's ex boyfriend chooses a black SUV or a silver convertible impacts whether James will hate Emma forever.

However, the two continue to carefully outline the choices they make, until a fatal one forces them to realize that there are just some things out of their control.