 Wells Fargo agent Alamo Bowie (Buck Jones) is sent to Twin Forks, New Mexico to break up the Big-4 gang, headed by "One-Shot" Brady (Matty Fain), reputed to be the fastest gun in the territory. Bowie is given a free hand to act as Judge, Jury and Prosecutor. Alamo has a fight in the Four Aces saloon with "Pecos" Brown (Lee Shumway). Brown talks and is shot by Sam Logan (George Regas.) Gang member Tom Willis captures John Golden (Frank LaRue) and holds him for ransom. Bowie captures Willis, who is murdered in his jail cell by Brady. Bowie prepares for a shoot-out with Brady.