What unfolds in her remote town and on foreign shores sets Merilee and her growing circle on a collision course with an unimagined destiny. Caught up in the chaos is Luftwaffe pilot Erich Leitner. Shot down during the Battle of Britain and transplanted to a lakeside prison in Muskoka, he discovers he has more to fear from his comrades than his captors.
While her cousin-in-spirit, Elyse Thornton, navigates the treacherous skies of Britain as a Spitfire Girl, audaciously ferrying warplanes from factories to airfields, Merilee becomes quietly entangled in her own dangerous liaisons on the home front. Caught between worlds, with conflicted loyalties and a sense of duty, she joins the Royal Canadian Air Force, Women's Division, and soon finds herself in ground-zero London, focusing her photographer's lens on a city under bombardment.
Far from carefree summers on the lake, struggling to survive the relentless demands and sacrifices of war, Merilee, Elyse, and their friends wonder if they dare to risk their hearts as well.
As unlikely lives intersect, ideologies and social hierarchies are challenged, loves and friendships are forged or broken, and countless heroes are made and lost. But even those who return to the serenity of Muskoka are changed forever.