The war that everyone thought would be over by Christmas 1914 is dragging on into its second bloody year. Germany, eager to break its enemies' will, is converting all its Zeppelins to bombers and sending them over English cities. One raid targets a factory worker and her friends, and she vows revenge. Meanwhile, two idealistic pilot-surveyors in the American west decide to ignore their President's neutral stand. Soon, they too are personally involved...