1949, London.

In the aftermath of the war, Angie Westwood thinks the hard times are behind her. But when her cousin, Jane, dies of heart failure at the tender age of twenty, leaving a three-year-old son and an unresolved mystery over his father's identity, her life changes beyond all expectations.

Angie immediately adopts Danny and decides to bring him up as her own, but she is torn between a desire to trace his father - for the boy's sake - and her fear of losing him to this unknown man.

Concerned about Danny's well-being, Angie takes him to visit John and Hettie Sawyer, whose farm she and Jane were evacuated to during the war. The moment they lay eyes on him it is immediately apparent to the Sawyers who Danny's father is. But should they share this news with Angie? For his identity will be the most enormous shock to her...