Jack La Salle marries South American heiress Blanquetta Del Castillo, and the two settle into a happy life in New York City. Following the birth of their son, Jack, Jr., however, Jack becomes involved in an affair with the notorious Josie Sabel and thereafter ignores his wife. Outraged upon learning that Jack has taken their son to Josie's apartment, Blanquetta files for divorce, the court finally ruling that the boy must live with each parent for a portion of the year. As the time of little Jack's departure from his father approaches, Jack, Sr. declares that he will never return the boy to his mother, whereupon the tortured Blanquetta shoots and kills her faithless husband.

Letters from the late mother of orphaned sisters Jane and Katherine seem to indicate that their father is Capt. Bob Dutton. Under orders from his superior, Colonel Harding, to acknowledge the children or quit the service, Dutton accepts responsibility for them. Shocked by his presumably checkered past, Cecile Harding, Dutton's fiancée and the colonel's daughter, breaks their engagement. One evening Jane surprises Capt. Robert Duncan, Dutton's rival for Cecile, stealing Bob's papers.

When circus aerialist Polly Fisher is injured, she is taken to the nearby home of minister John Hartley. The two fall in love and marry secretly. But when the news leaks out, the minister loses his pastorate over disdain by the parishioners for Polly's background as a performer. Polly must decide whether to stay with the man she loves or leave him for the good of his calling.