The Hardy Boys / Nancy Drew Mysteries

The Mystery of the Flying Courier (1x9)

Air date: Apr 10, 1977

Joe Hardy makes his singing debut at a disco where he and Frank become involved in a record piracy case. At the club, Frank recognizes a girl who supposedly has been missing for years. When she is arrested, the brothers embark on an investigation of a crooked disc jockey and other unscrupulous musical characters.