Bank Alarm

Federal agent Alan O'Connor (Conrad Nagel) goes undercover to crack a gang pulling a string of small-town bank robberies, only to discover his sister (Eleanor Hunt) has unknowingly become engaged to the gang's smooth-talking ringleader. Directed by Louis J. Gasnier — the man behind Reefer Madness — for Grand National Pictures, it's a brisk G-man B-picture from the era when J. Edgar Hoover's bureau was Hollywood's favorite source of heroes. The film is in the public domain.