 Pancho Gomez(Walter Miller)has kidnapped Don Roberto(Lafe McKee)and is holding him and his daughter, Tonita(Marie Quillan)for ransom. An undercover lawman(Lane Chandler)rides into the stronghold of Gomez and his horde of henchmen and tells them his name is "Gun" Smith and he is a gunsmith and do they have any guns that need repairing. Of course, they do.He sets out fixing their guns so they will misfire, locates Roberto and Tonita and is set to depart but Gomez isn t having any of that.He holds off the outlaws,most of whom have guns that fizzle and explode, and sends his horse Raven to fetch Sheriff Jones(Yakima Canutt) and his posse.