Having paid for the education and legal training of his younger brother, Bruce, with the idea that he would become a lawyer and join his business, Frederick Garth, a racketeer posing as an honest businessman, is dismayed when he learns that Bruce has become a G-Man instead.
When her scientist-employer is murdered, a female legal immigrant suddenly finds herself being deported via a train full of criminal aliens, g-men, reporters - and foreign agents trying to smuggle her off and into the hands of the murderous gang.
By a daring ruse and inside help, Pete Rennick, a noted criminal behind bars on federal charges, escapes from the prison, and all of the law-agencies and local police are out to catch him with roadblocks and every car searched, but the escapee gets away. Bill Hasford, a private detective, investigating a racket finds it leads to the wanted man, and has the biggest adventure of his career.