A story about the U. S. Department of Justice and its agents that begins with a daring mail-truck robbery by a ruthless gang that flees to the western United States after the robbery. When money from the robbery shows up in a small Kansas town, the department sends agent Dick Grant to investigate, posing as a businessman. He is hindered in his assignment by a local newspaper reporter, Helen Sherwood, and when he falls in love with her, he is unable to reveal to her who he really is and why he is there.