Masterson, having become a captain of industry, leaves the details of running the works to his employees and moves to another city to take life easy and enjoy the wealth that has come to him after years of toil. Shortly after the departure of Masterson the domineering superintendent cuts the wages of the employees, thereby bringing ruin not only to the factory, but to the homes of the workmen. Jimmie Blake, a young boy of fourteen, the only support of his sister, Maggie, is brutally struck down by Mooney, the superintendent, for being late one morning. Just then a huge iron beam becomes loosened and crashes down upon Jimmie. The laborers declare a strike and carry the boy to his home where the doctor announces that only an operation performed by a skilled specialist will prevent the boy from being a cripple for life. Being without funds Maggie Blake goes to the factory intent upon robbing the safe. Hearing steps upon the stairs, she hides herself in the closet. Masterson, who has been summoned by Mooney who has had a bad fight with the strikers, places the unconscious superintendent in a chair, and, going to the closet for suitable bandages, discovers Maggie, who tells him that she was hiding from the strikers. Bent upon revenge, Maggie, after sending the capitalist for water that she may bathe Mooney’s head, calls upon the telephone “Bat” Thomas, her sweetheart, whom she knows is addressing a meeting of the strikers at a hall and tells him that Masterson has her imprisoned in the office. After hearing Maggie’s story, Bat leads his men to the office, the door of which is barricaded by Maggie and Masterson. Maggie helping in the barricade work for Masterson, having heard her pitiful story, assures reparation. Bat affects an entrance into the office by climbing to the roof and going through a window. In his struggle with Masterson the stove is upset and soon the room is ablaze. The fire spreads rapidly and soon the whole factory is a scathing mass of flames. By a unique method all escape from the building just before the walls fall in. Later, with the owner at the helm, the Masterson Iron Works again becomes a model factory. Bat, with Maggie as his wife, is the new superintendent, and little Jimmie is restored to health by the specialist.