A US agent protects a defecting Russian scientist in London as scientists are murdered. The agent finds the killers' hideout, is captured with a policeman's niece, escapes, and stops the kil... Read allA US agent protects a defecting Russian scientist in London as scientists are murdered. The agent finds the killers' hideout, is captured with a policeman's niece, escapes, and stops the killings.A US agent protects a defecting Russian scientist in London as scientists are murdered. The agent finds the killers' hideout, is captured with a policeman's niece, escapes, and stops the killings.