His Brother's Keeper: Rex Radcliffe, vice president of the Northern Atlantic Railroad, is opposed by company president William Harding in his desire to put over a deal that would jeopardize the stockholders of the Interstate Railroad. Using thought control, he causes Weer, Harding's discharged secretary, to murder his ex-boss. Weer is arrested for the murder. Radcliffe then puts Harding's daughter, Helen, also under his influence. John Bonham, Interstate president, becomes interested in the case, and with the aid of Mrs. Weer he exposes Radcliffe, who then commits suicide.