Zara loves her job as a community midwife caring for pregnant mums and their babies, but her great regret is that she will never be able to have a child of her own. So when she discovers that her ex-husband's new girlfriend is pregnant she is devastated. But life must go on, and one day on her rounds she rescues an abandoned puppy. Unable to give him up, she decides to keep him. But though Zara has plenty of love to give, she has no idea how to train a dog, and when he gets expelled from dog training classes she is at the end of her tether. Until she meets young shepherd Lewis who offers to help her with her naughty dog. It's a perfect solution and Lewis is brilliant with the puppy, and, if she's honest, with Zara herself. But she can't help worrying that the age difference between them can only lead to heartbreak.