Robbie and Jenn are meant to be. They've finally reconciled after eight months spent apart and both know that, this time, it's forever.

But forever might not be as long as they think.

As a truck hurtles towards their car on their way home, Robbie is thrown back into Jenn's past and he finds himself spectator in the most important moments of her life: golden moments from her childhood and heart-breaking ones from her teenage years; her exhausting time at med school and just where she's been for the last eight months. But he may find more than he bargained for...

Can Robbie right the wrongs in their past? Can he get to the bottom of what drove Jenn away eight months ago? Most importantly, can he change their present in order to save their future?