Emmie let out a huge sob - "It's not a film set", she cried. She held onto Jack for a moment, then took a step back, closed her eyes and shouted - "WHERE AM I?" When Jack and Emmie suddenly find themselves transported back to London in 1940, they find a world both familiar, yet very different. As they dodge falling bombs and over-zealous policemen, they befriend Jan - a lonely Polish refugee. Together, they must work out if the shadowy figure they keep seeing is a spy and unlock the secret of getting home again... This educational story helps to weave current views and historical events together in an exciting adventure which would appeal to both boys and girls.