Uncle Dudley tells Mary Batson that he has just started the "Shazam Inc. Missing Money Bureau", that specializes in locating lost or misplaced funds, when in walks his long lost niece, Mary. But that surprise is soon followed my Dudley's first case: to locate the late Colonel Cal Cole's fortune. Mary, calling herself Freckles, joins Uncle Dudley in costume to work on the case.; Chase is out late at night to meet up with a secret agent who has the latest dope on a nest of enemy spies, when he discovers the dying man, who states with his last breath that he was attacked by huge, yellow talking bats!; When he is denied a position of violinist for a world symphony orchestra because he is thought mad, Albert Dorrin decides to get revenge by becoming the Spirit of Mad Music, and driving musicians temporarily insane.