Sophie is seventeen when the United States joins the Great War and the mandatory conscription is enacted. All her dreams hang in the balance when her fiancé is drafted and sent to France to fight in the trenches.

Searching for comfort and purpose, Sophie turns to her love of music, and through it, finds more than she ever expected. As she discovers new strength, Sophie feels compelled to take on a greater cause. While the young men are battling overseas in the name of democracy, she joins the crusade at home for women to have a voice in their government.

Persevering through her own personal fears and losses, Sophie clings to the hope that the world—and her life—will one day be at peace again.