Childhood sweethearts Keith Dawson and Aria Sullivan are on the cusp of marriage when a car crash changes everything. In the aftermath, Aria mistakes Ryan Bennett for her rescuer, her misplaced gratitude blinding her to Keith's unwavering devotion. Time and again, she spurns the man who truly loves her. When the truth finally shatters the illusion, Aria awakens to her tragic error. But for Keith, it is too late. He has severed their bond for good, his heart and mind now committed to a one-way classified mission to the stars. He leaves for the cosmos, never to return, leaving Aria with a lifetime of what-ifs beneath an empty sky.