Edie Lawrence has never been one to play by the rules. As war in Europe is declared she disguises herself as a soldier and enlists with a London regiment. Her aim is to become the first woman to report from the battlefield but also to catch news of her beloved Nate who has already been sent to the Front. Dr Lucinda Garland volunteers her medical services to the War Office. But her offer is met with rejection. Undeterred she works with the French Red Cross to create a pioneering all-female-run military hospital in Paris. As Lucinda struggles to cope with the horrific injuries that flood her hospital she finds herself losing her heart to someone unexpected. When Edie is injured and her gender revealed on Lucinda's operating table the fates of these brave women intertwine in ways that neither of them could ever have foreseen.