Code of the Secret Service

Secret Service agent Brass Bancroft (Ronald Reagan) and his partner, Gabby (Eddie Foy Jr.), go undercover in a Mexican town that is the center of a successful counterfeiting ring. Brass makes contact with another agent in the Silver Dollar Saloon, but, after he gathers information on the ringleader, the lights go out, and the other agent is shot. Realizing the local police suspect him, Brass flees, only to be picked up by a man (Moroni Olsen) who turns out to be the ringleader himself.