It is 1917, and while war wages across Europe, in the heart of London, there is a place of hope and enchantment. The Emporium sells toys that capture the imagination of children and adults alike: patchwork dogs that seem alive, toy boxes that are bigger on the inside, soldiers that can fight battles of their own. Into this family business comes young Cathy Wray, running away from a shameful past. The Emporium takes her in, makes her one of its own. But Cathy is about to discover that the Emporium has secrets of its own.