Chilton, a crooked dealer in antiques, decides on a daring scheme to recoup his finances by defrauding the railroad. A car-load of cheap furniture is shipped with a valuation of $40,000 on it. Blanding, the tool of Chilton and his partner, awaits at Lone Point a telegram giving the number of the car. A cipher message comes, and shortly after Blanding receives it the car is found afire at the siding. So carefully have the plans been laid that the dealers succeed in collecting the damage claim, after which another cipher is sent to Lone Point telling Blanding to come out of hiding. Helen, whose suspicions have been aroused by the ciphers, sets about a lone investigation. How her keen wits, and, when the moment of danger comes, her bravery in the face of terrible danger, succeed in apprehending the guilty ones is told in the closing scenes of this "Hazard of Helen."