A woman loses her battle with cancer, leaving her husband and two young daughters behind. But what if she'd beaten the disease? A love struck teenager is killed in a car crash when she and her boyfriend attempt to outrun a train. But what if HE had been killed instead? A wife sets her dreams aside to support her husband while he goes through medical school. But what if she'd focused more on her own hopes and plans and less on his? What if... What if... What if... In a world of loss and pain and unfulfilled dreams, three families are about to get the ultimate 'do over' - but are the...