Whispering Smith is a virile, fearless type of the true American whoso theory of life is to give every man a chance to show what is in him. There is nothing of the bully or braggart about him. He is only a man who knows instinctively what is right and never falters in his steps to see that justice is given where it is deserved and crime punished on the same basis. Whispering Smith loved Marion, a carefree and beautiful western girl. His love was that of the strong, clean living man, who know no physical danger, but is reticent and bashful in his love affairs. Lacking as a suitor the characteristics that made him esteemed and feared among his fellow-men, he was beaten out for her hand by Sinclair, a dashing devil-may-care sort of fellow among the women, but an unscrupulous and vindictive man at heart. Marion's life with Sinclair was not all joy and happiness. Slowly he was killing her love for him, but in the manner of his kind he believed that harshness was the way to rule women. When the story opens, Sinclair, who is foreman of a wrecking crew on a mountain section of a transcontinental railroad, is living in one of the company's cabins in the small division terminal, "Medicine Bend," a typical western railroad and mining town. This town was located at the foot of a steep declivity, noted for the frequency of the wrecks occurring there, particularly among freight trains. The officials of the road were worried at the great number of the wrecks, but were more concerned with the robberies that took place after each collision. No trace of the thieves could be found. The railroad detectives had about given up in despair when Whispering Smith was sent to "Medicine Bend" to put an end to the robberies. Sinclair was never suspected. Smith, however, discovers soon after his arrival that Sinclair is the brains of the gang engaged in looting the freight cars. Smith, to save Marion the disgrace of having her husband branded as a thief, does not expose him, but causes the division superintendent, McCloud, to discharge him. Life for Marion soon becomes unbearable and she leaves him. This arouses to frenzy the desperate man, who plans to get revenge on the railroad by burning the "Smoky Creek" trestle. Assisted by several of the band who had been engaged in looting the cars, Sinclair sets fire to the trestle, causing a disastrous wreck. Smith, determined to capture the men responsible, discovers that Sinclair is at the bottom of the plot. Again his love for Marion induces him not to expose her husband until he talks with her. He effects a reconciliation between Sinclair and Marion and upon the former's promise to lead a better life and to leave "Medicine Bend," Whispering Smith lets him go with his wife, and the girl he still loves.