Johnny Wreath was the young son of Myrtle Wreath and her husband Nifty. Nifty was a gambler, and the couple separated. Johnny was very little, but he was old enough to walk and was verbal. He had blond hair and round cheeks.

During World War II, Myrtle took a job as a truck driver. She placed Johnny into the free day-care center offered by Mrs. Potter. One day, Nifty abducted Johnny, believing that he was being unfairly prevented from being with his son.

Dick Tracy joined the search for Johnny, who had been separated from his father in a snowstorm. Tracy found the child and, after some complications, managed to get the boy to a hospital. Johnny's condition was serious, but he eventually recovered and his family was reunited.

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