 In spite of the incorrect cast order shown by some uninformed source when this was written, Johnny Mack Brown did not play the character of Nevada Jack McKenzie in this film, Raymond Hatton did not play Sandy Hopkins, and Raymond Hatton was billed 2nd and not 5th as shown. This one begins after the Civil War when the Overland Telegraph Company is persuaded by rancher Jim Kerrigan (Ted Adams)to allow his own men to extend the line to Baxter Springs, guaranteeing to pay for the construction himself if it isn t finished at the end of two months. Land promoter Burton Wheelock (Kenneth MacDonald) will lose money if the line is completed and gets ex-rustler Larry Foster (Dennis Moore), fiancee of Sandra Kerrigan (Reno Browne as Reno Blair), to sabotage the work. Telegraph company trouble-shooter Johnny Mack (Johnny Mack Brown), investigating the sabotage, saves Kerrigan s men Joe Farr (Riley Hill) and Cappy (Raymond Hatton)from masked outlaws. Henchman Mugsy (Boyd Stockman)is captured by Johnny, while Larry, Slim (Lane Bradford) and the other henchmen escape after shooting telegraph patrolman Nevada (Kansas Moehring). Larry kills Mugsy before he can identify the gang leader. Henchman Straker (Bob Woodward)is captured by Johnny and jailed. Slim steals Johnny s identification card from his saddle bag, and it is found near the jail when Wheelock s men help Straker break jail and kill a deputy sheriff. Because of the card, the Marshal (William Ruhl as William S. Ruhl)arrests Johnny, but Joe comes to his rescue. An attempt to fire the Kerrigan ranch is foiled, and Larry s hat is found, which proves to Sandra her fiancee s crookness. Larry is trailed to Wheelock s office, and both are killed in a shootout with Johnny, Cappy and Joe.