The old inventors daughter is a mission worker. She makes a convert of a young crook and eventually becomes engaged to marry him. But her father does not approve of him, and shows him the door when he learns from a detective the record of his daughter's suitor. The inventor's plans are stolen by an unscrupulous manufacturer, and the crook volunteers to recover them.

• Biograph Company
• Charles West
• Claire McDowell
• Harry Carey