Neglectful of his little home and family, Pat resorts to evil companions at the town tavern. The priest of the village gives him a strong lecture. On the priest’s advice, he goes to America, leaving a solemn promise with Mary that he will never touch liquor again. He finds employment as a stoker in the boiler room of a large factory. One day he receives a letter from Mary in which she tells him that a little girl has arrived to bless their union. Pat is delighted, and while sitting in the engine room dreaming of home, the men in the boiler room, who have been drinking, pile too much coal in the furnaces, and an explosion is imminent. They flee from the room. Pat, seeing the escaping steam, hastens below, enters the boiler room, turns the safety valve and avoids a disastrous explosion. In this act of heroism, he is so badly scalded he dies in the arms of his sympathetic co-workers, after taking Mary’s letter from the bosom of his shirt and kissing it in fond remembrance of her. The good priest breaks the news to his family.