Howard Varing, the district attorney, is waging a war on political crooks in his city, and is using every means possible to obtain evidence which will convict them. Wardell, the leader of the bunch, has read in the newspapers of Varing’s intentions, and decides that the attorney be put out of the way at any cost. While conferring with two of his henchmen as to how he will accomplish this work. Stone enters. When Stone demands his money for a deal in which he was implicated, he is refused and thrown out bodily. He is thoroughly angered and swears revenge. Stone goes to Varing’s office and tells all he knows about the underhand work of Warden’s crowd, and that evening leads the way to the gang’s rendezvous. They enter and a light ensues in which Murphy is killed. Wardell accuses Varing and has him put under arrest. Stone escapes, but is fatally wounded and manages to drag himself to the room of Kerns, where he writes a confession clearing Varing and accusing himself of the murder. Kerns promises to deliver the message to Mildred, Varing’s daughter. Stone also writes a letter telling Wardell of his revenge. He asks Kerns to deliver this to Wardell. He then dies in his pal’s room. Kerns delivers the confession safely to Mildred, but at the rendezvous is not so lucky. He is caught by one of Wardell’s men while in the act of slipping the note under the door. His life is threatened if he refuses to tell the whereabouts of Stone’s written confession, so he tells all. Meanwhile, Mildred alone in her home, has placed the letter in a brass box for safekeeping. Before retiring she starts to hide it, when she is confronted by Wardell and Nichols, who have been watching her through the window. She quickly extinguishes the lights and throws the box out of another window. She then rushes out, locks the door, and after finding the box, darts out into the darkness. The two brutes overtake her and are about to take the box when her cries are heard by Humphrey, who has been motoring and lost his way. He goes to the rescue, but is forced to pursue Nichols to get possession of the box. When he returns, Mildred and Wardell have disappeared. Being at a loss as to what to do, he takes the box home with him, where he very shortly receives a telephone message from a woman who says she is Mildred’s friend, and “for him to bring the confession to her home.” Humphrey, suspecting that the call is fake, leaves the box at his home and proceeds to the given address. Upon arriving he tells the woman that he did not bring the box, and is about to leave when he is dealt a blow by Wardell, rendering him unconscious. Humphrey regains consciousness and finds himself alone. He hears the low moans of a woman in the next room, and upon finding the door locked, goes to the window. He is horrified to find that the street is eight stories below, but decides to take a long chance and crawl along a ledge to the window in the adjoining room. He breaks the window and much to his surprise finds Mildred bound and gagged. He releases her, and she explains that she had overheard. Wardell telling Nichols that he intended entering Humphrey’s home, and securing the brass box. A wild automobile ride then follows and, upon arriving at his home, he catches the crooks as they are about to leave. Humphrey is victorious in the struggle that follows and rescues the valuable box. After reading the confession he understands what it is all about and is glad that be fought to return it to Mildred. Varing is released after the confession is produced, while Wardell and his crowd pay the penalty of their crime. Later, Humphrey wins Mildred for his wife, with the hearty consent of Varing, who rejoices in the selection of his daughter and welcomes the handsome young chap into the family.