It's August 1914, and the threat of war weighs heavily on the people of Liverpool, but not on Sarah Hoxton. For Toby Percival, the son of her employer, is in love with her. Her mother fears they'll both lose their jobs when Toby's father finds out, but Sarah's prepared to risk everything for Toby's love. Maurice Percival is furious when he discovers his son is involved with a factory girl. Determined to defy his father, Toby joins the army. Sarah is left facing what seem to be insurmountable obstacles, but with the help of her friends, family and a strength she never knew she possessed, she discovers there is a light at the end of the tunnel, though it shines from a different direction to the one she expected.