Spring 1915. As the Great War burns its way across Europe, Jack McColl, a spy for His Majesty's Navy, is stationed in India, charged with defending the Empire against Bengali terrorists and their German allies. In England, meanwhile, suffragette journalist Caitlin Hanley begins the business of rebuilding her life after the execution of her brother, an Irish republican sympathizer whose plot Jack McColl--Caitlin's ex-lover--had foiled. The war is changing everything, and giving fresh impulse to those causes--feminism, socialism and Irish independence--which she as a journalist has long supported. The threat of a Rising in Dublin alarms McColl's bosses as much as it dazzles Caitlin. It was one Irish plot which came between Jack and Caitlin in 1914, and it will take another to bring them back together, as both enemies and lovers.