August 1914. With the approach of war about to bring tragedy and heartache to families all over England, Elsie longs to do her duty for King and country. She heads to London to act as an interpreter for thousands of Belgium refugees. But although she enjoys her work, she longs to do more. And when the opportunity arises she joins the foreign office, travelling to France as an undercover agent. When circumstances force her to return home, she joins the FANYs. And on the battlefields of Europe, she must find the courage to help save lives, each day hoping that one day she'll be reunited with the man she loves.