Eleanor Foerster, a bright and irreverent fourteen-year-old, takes her first step into adulthood on the day she learns that America has entered the Great War against Germany. Suddenly, her quiet town in upstate New York is swept up in the turbulence of World War I, and Ellie watches as her family and community are reshaped in unexpected ways. Ellie's impulsive elder brother Francis tries to escape family expectations by enlisting in the army, but then discovers that the army has expectations, too. Her sister Lucy finds love, loses it, then finds it again. Her uncle and mentor John helps his roomer Reid find a way to avoid the draft without breaking the law, but then learns that his political frankness can be costly in a small town. As the war rages on, the Great Influenza spreads at home, and the post-war Red Scare stirs unrest, Ellie must navigate personal loss and growing uncertainty. Along the way, she discovers a hidden talent - one that may just help her earn her way into a future beyond her family's expectations. Rich in historical detail and emotional depth, Ellie's War is an inspiring portrait of one young woman's determination to build a life for herself in one of America's most tumultuous times.