AllMovie

This was one of an endless parade of pictures shot during World War I which used its intrigues as a backdrop. English Army Captain C.J. Woodhouse (Lewis Stone) has to track down a German spy and halt a plan which involves the Germans blowing up both the rock of Gibraltar and a group of British navy ships, which happen to be docked nearby. Jane Gerson (Marguerite Clayton), a buyer from New York, encounters Captain Woodhouse and serves as both love interest and a clue to the spy's identification. Lewis Stone and Marguerite Clayton both starred in the stage version of this picture, and they were hired to repeat their rolls here.