Kidnappers abduct a young woman, believing her to be the daughter of a millionaire. In reality, she's the daughter of a middle-class couple who had been driving the car of the intended victim. Erskine and Colby lead the FBI's investigation of the case. But the daughters of the victim don't have the means to raise the ransom. Meanwhile, the rich father of the intended kidnap victim doesn't want to provide the ransom because it would violate the principles he has lived with all his life.
—Bill Koenig